CN108900211A - A method of ultra-wideband impulse radio interference is inhibited using correlation receiver stencil design - Google Patents
A method of ultra-wideband impulse radio interference is inhibited using correlation receiver stencil design Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
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Abstract
The present invention relates to a kind of methods for inhibiting ultra-wideband impulse radio interference using correlation receiver stencil design, include the following steps：Step S1：Interference signal is estimated, the frequency range of interference signal is obtained；Step S2：Correlation receiver stencil design is carried out according to the frequency range of interference signal；Step S3：Emit ultra wide band useful signal, correlation is carried out to signal is received using the designed template of step S2 in correlation reception pusher side；Step S4：Judgement is sampled to the correlated results of step S3, obtains corresponding output signal sequence.The present invention can effectively inhibit to interfere.
Description
Technical field
The present invention relates to broadband wireless communications fields, especially a kind of to inhibit ultra wide band using correlation receiver stencil design
The method of pulse wireless electrical interference.
Background technique
It is impulse radio that ultra wide band (Ultra Wideband, abbreviation UWB), which wirelessly communicates one of realization technology,.Arteries and veins
Radio is rushed using ultra-short Time pulse, to generate the signal with ultra-wide (GHz) bandwidth, short haul connection has very high system
System handling capacity.Since UWB substantially covers the frequency range of existing various communication systems, need to many existing coexistence of communication systems,
For example, being coexisted with the IEEE 802.11a WLAN to work in 5Ghz.Therefore the U.S. FCC specific provision transmitting of UWB
Power spectral density maximum limit, to reduce interference of the UWB to shared communication system, but UWB is also by various communication systems
Interference and threat, especially when the radiant power of these interference sources be much larger than UWB signal power when, UWB receives serious interference,
Therefore AF panel is essential to UWB communication system.
In view of the pressure of the ultra-wide band logarithmic mode conversion of ultra-wideband impulse radio signal, mould can be used when high-speed transfer
Quasi- transmission and correlation receiver coherent detection.If it is possible to which correlation receiver stencil design directly inhibits external interference
Influence will be highly beneficial to ultra-wideband communication system.
The number that ultra wide band in existing literature technology is eliminated or algorithm of interference is inhibited to generally require digital-to-analogue conversion and complexity
Signal processing, digital-to-analogue conversion difficulty is big and processing needs certain time delay, in contrast, using simulation correlation receiver stencil design
There is lower processing delay to inhibit to interfere, be more advantageous to the high-speed transfer of inexpensive ultra-broadband signal.
Summary of the invention
In view of this, the purpose of the present invention is to propose to it is a kind of using correlation receiver stencil design inhibit ultra-wideband pulse without
The method of line electrical interference can effectively inhibit to interfere.
The present invention is realized using following scheme：It is a kind of that ultra-wideband impulse radio is inhibited using correlation receiver stencil design
The method of interference, specifically includes following steps：
Step S1：Interference signal is estimated, the frequency range of interference signal is obtained；
Step S2：Correlation receiver stencil design is carried out according to the frequency range of interference signal；
Step S3：Emit ultra wide band useful signal, in correlation reception pusher side using the designed template of step S2 to reception
Signal carries out related；
Step S4：Judgement is sampled to the correlated results of step S3, obtains corresponding output signal sequence.
Further, in step S1, interference signal is estimated using sweep generator or power spectrum signal.
Further, correlation receiver template is designed using window function or filter in step S2.
Further, step S2 uses window function, for the decaying frequency range of the frequency range adjustment window function of interference signal.
Further, the window function is rectangular window function, specifically includes following steps：
Step S21：The template waveforms of related window function are designed as：
G (t)=p (t) * h (t)；
In formula, * represents convolution, and p (t) indicates ultra-wideband pulse, and h (t) is the window function of design, and major function is to allow g (t)
Frequency spectrum decay in the existing part of interference, corresponding power spectral density is：
Sg(f)=Sp(f)|H(f)|2；
In formula, Sg(f) spectral density for being g (t), Sp(f) spectral density for being p (t), H (f) are the spectral density of h (t)；
Step S22：Frequency range where rectangular window is arranged in interference signal decays, if
In formula, enable α for decaying, and 0≤α≤1, f1With fMRespectively two endpoints in interference band section；
Step S23：Obtain corresponding interference variance E (I2) and corresponding signal noise interference ratio SNIR γ '；
Wherein, according to mean value theorem, corresponding interference variance is：
In formula, f*∈[f1,fM], f*Indicate the frequency separation [f obtained by mean value theorem1,fMIn a certain Frequency point, Sp
(f*) indicate that ultra-short pulse is punched in f*Spectral density, Si(f) spectral density of interference signal, R are indicatedi(0) interference signal is indicated
Auto-correlation function when the time difference is 0, α is decay factor；
Signal noise interference ratio SNIR γ ' is accordingly：
In formula, E (N2) be AWGN noise mean square deviation, s2For signal energy, τ ' is the time difference of auto-correlation function, N0For
Twice of white Gaussian noise power spectral density, Rg(0) be correlation receiver design template waveform g (t) when the time difference is 0 from
Correlation function, Rp(τ ') is real even function, indicates auto-correlation function of the ultra-wideband impulse radio signal when the time difference is τ '；
Step S24：Decay factor is enabled to meet the following conditions：
Further, the window function is Hanning window function.
Further, in step S3, in AWGN after the bit stream modulation that the ultra wide band useful signal is exported by signal source
Channel.
Compared with prior art, the invention has the following beneficial effects：
1, the present invention tells transmission suitable for ultra-wideband impulse radio under interference environment, can effectively inhibit to interfere.
2, realization process of the invention is convenient, fast and at low cost.
3, the present invention has shorter processing delay without digital-to-analogue conversion.
4, the present invention is effective to inhibiting broadband and narrowband to interfere.
5, the present invention can realize in the case where the amplitude and phase without knowing interference.
Detailed description of the invention
Fig. 1 is ultra-wideband impulse radio model of communication system schematic diagram used by the embodiment of the present invention.
Fig. 2 is the system that the embodiment of the present invention inhibits ultra-wideband impulse radio interference using correlation receiver stencil design
Configuration diagram.
Fig. 3 is the curve that correlation receiver of the embodiment of the present invention exports that interfered signal influences.Wherein, Fig. 3 (a) is correlation
Receiver output and disturbance signal frequency f1Relation curve；Fig. 3 (b) is correlation receiver output and disturbance signal
The relation curve of amplitude a1.
Fig. 4 is the output waveform of ultra-wideband pulse and corresponding correlation receiver in the embodiment of the present invention.Wherein, Fig. 4
It (a) is the ultra-wideband pulse for being not affected by interference；Fig. 4 (b) is corresponding correlation receiver (template is p (the t)) output wave of Fig. 4 (a)
Shape；Fig. 4 (c) is the ultra-wideband pulse of destruction of being interfered；Fig. 4 (d) is correlation receiver (template p corresponding with Fig. 4 (c)
(t)) output waveform；Fig. 4 (e) is the correlation receiver template waveforms that Hanning window and rectangular window design is respectively adopted, and Fig. 4 (f) is
Be interfered destruction ultra-wideband pulse with the correlation receiver output waveform of Hanning window and rectangular window design template is respectively adopted.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Present embodiments provide a kind of side for inhibiting ultra-wideband impulse radio interference using correlation receiver stencil design
Method specifically includes following steps：
Step S1：Interference signal is estimated, the frequency range of interference signal is obtained；
Step S2：Correlation receiver stencil design is carried out according to the frequency range of interference signal；
Step S3：Emit ultra wide band useful signal, in correlation reception pusher side using the designed template of step S2 to reception
Signal carries out related；
Step S4：Judgement is sampled to the correlated results of step S3, obtains corresponding output signal sequence.
In the present embodiment, in step S1, interference signal is estimated using sweep generator or power spectrum signal.
In the present embodiment, correlation receiver template is designed using window function or filter in step S2.
In the present embodiment, step S2 uses window function, for the decaying frequency range of the frequency range adjustment window function of interference signal.
In the present embodiment, the window function is rectangular window function, specifically includes following steps：
Step S21：The template waveforms of related window function are designed as：
G (t)=p (t) * h (t)；
In formula, * represents convolution, and p (t) indicates ultra-wideband pulse, and h (t) is the window function of design, and major function is to allow g (t)
Frequency spectrum decay in the existing part of interference, corresponding power spectral density is：
Sg(f)=Sp(f)|H(f)|2；
In formula, Sg(f) spectral density for being g (t), Sp(f) spectral density for being p (t), H (f) are the spectral density of h (t)；
Step S22：Frequency range where rectangular window is arranged in interference signal decays, if
In formula, enable α for decaying, and 0≤α≤1, f1With fMRespectively two endpoints in interference band section；
Step S23：Obtain corresponding interference variance E (I2) and corresponding signal noise interference ratio SNIR γ '；
Wherein, according to mean value theorem, corresponding interference variance is：
In formula, f*∈[f1,fM], f*Indicate the frequency separation [f obtained by mean value theorem1,fMIn a certain Frequency point, Sp
(f*) indicate that ultra-short pulse is punched in the spectral density of f*, Si(f) spectral density of interference signal, R are indicatedi(0) interference signal is indicated
Auto-correlation function when the time difference is 0, α is decay factor；
Signal noise interference ratio SNIR γ ' is accordingly：
In formula, E (N2) be AWGN noise mean square deviation, s2For signal energy, τ ' is the time difference of auto-correlation function, N0For
Twice of white Gaussian noise power spectral density, Rg(0) be correlation receiver design template waveform g (t) when the time difference is 0 from
Correlation function, Rp(τ ') is real even function, indicates auto-correlation function of the ultra-wideband impulse radio signal when the time difference is τ '.
Step S24：Decay factor is enabled to meet the following conditions：
In the present embodiment, the window function can also be Hanning window function.
In the present embodiment, in step S3, the bit stream that the ultra wide band useful signal is exported by signal source modulate after
It is transmitted on awgn channel.
Particularly, in order to which preferably the present invention will be described, ultra-wideband impulse radio used by the present embodiment is logical
Believe that system model is as shown in Figure 1.It is transmitted on awgn channel after the bit stream modulation that ultra-wideband pulse is exported by signal source.It is passing
During defeated, pulse is disturbed to be destroyed.In receiver end, output data is adjudicated in the demodulated sampling of ultra-wideband pulse.
Wherein, ultra-wideband pulse uses Gaussian monopulse model：
In formula, A is constant collection, meets FCC (US Federal Communication Committee Federal Communications
Commission) to the requirement of ultra-broadband signal, select centre frequency for fc=6.85GHz.Succinct, the UWB pulse mode to analyze
The normalization of type is as follows：It enablesAnd it defines：
P (t) is the first derivative of Gaussian pulse.
Wherein, interference model uses M covering frequency range [f1,fM], f1< f2< ... < fMSine wave sum, indicate such as
Under：
In formula, am,fm,Respectively represent the amplitude, frequency and phase of m-th of sine wave.
In this embodiment, the signal that Fig. 1 is received is made of three parts：UWB pulse sequences through data point reuse are done
It disturbs and AWGN noise, can be expressed as：
In formula, data bit flow dk∈ {+1, -1 } equiprobability value, n (t) is AWGN noise, and p (t) represents ultra-short pulse
Punching, i (t) represent interference, TuIt is the repetition period of ultra-wideband pulse；
The demodulator of ultra-wideband pulse uses correlation receiver.Traditional correlation receiver template and ultra-broadband signal emits
Waveform is identical, as p (t).After receiving end synchronously completes, correlation receiver output waveform β can be expressed as：
S, I and N are expressed as by three on the right side of equation.Signal energy s2=dk 2Rp 2(0)=Rp 2(0), whereinThe mean square deviation of AWGN noise is：
The mean square deviation of interference is：
In formula, τ '=t1-t2,Ri(τ)=E [i (t) i (t+ τ)], Si(f) and SpIt (f) is interference i (t) and ultra wide band respectively
The spectral density of pulse p (t).Pay attention to Rp(τ) is real even function.The spectral range of interference i (t) covering is expressed as [f1,fM].Cause
Sp(f) very wide and smooth, it can be obtained according to mean value theorem：
In formula, f*∈[f1,fM], signal noise interference ratio SNIR γ is at this time：
Obvious ultra-wideband communication system performance is significantly reduced because of the presence of interference signal.
Preferably, the influence that the following Analysis interference signal of the present embodiment exports radio ultra wide band system correlation receiver.
The case where considering interference model M=1, then the output of correlator is：
Exporting decision rule accordingly is：
Wherein, σ is preset decision threshold.For awgn channel and two-way modulation, σ=0.
When jamming power increases to certain threshold value, distracter will offset other items and even change in above-mentioned correlator output
Correlation receiver exports the positive and negative of y, and judgement is caused to malfunction.Without loss of generality, consider transmission data dkIt is=0 the case where, correct
Demodulation, correlation receiver output should be positive.Fig. 3 (a) illustrates correlation receiver output and disturbance signal frequency f1Pass
It is curve, every curve has different interference signal amplitude a1.For the sake of convenient, it is assumed thatAnd ignore white Gaussian noise AWGN
Influence.Centre frequency of the interference signal frequency closer to ultra-wideband pulse as seen from the figure, the threshold that jamming power enables judgement malfunction
It is worth lower, i.e., easier order judgement error.Distinguish in addition, each curve and y=0 line intersect at the corresponding interfering frequency of two o'clock
It is denoted as fαAnd fβ, fα≤fc≤fβ, it means that frequency fαInterference signal and frequency be fβInterference signal it is having the same
Judgement error power threshold is enabled, antithesis interference signal can be both referred to as.Such as amplitude a1=0.15 curve and y=0 straight line
Intersect at two o'clock fα=4 (GHz) and fβ=10.3 (GHz).Fig. 3 (b) illustrates correlation receiver output and disturbance signal width
Value a1Relation curve, every curve has different interference signal frequency f1(GHz).Frequency is fα(≤fc) curve show
In the left side of figure, and its antithesis frequency fβ(≥fc) curve symmetric show on right side.
It is contemplated that working as M > 1, i.e., the interference signal being made of more sine waves has the output of ultra wideband receiver similar
Influencing characterisitic.As long as interfering signal power is more than the threshold power that can enable subsequent judgement error, mistake will occur.Therefore,
For the ultra-wideband communication system being interfered, AF panel is essential.
In the present embodiment, the waveform of correlation receiver template can be designed specially to inhibit other to enter ultra wide band frequency band
Radio interference.Lower online can be carried out in view of correlation receiver stencil design, can be used Digital Signal Processing (such as window function or
Filter).
The template waveforms of correlation receiver may be designed as a result,：
G (t)=p (t) * h (t)；
In formula, * represents convolution, and h (t) is the window function of design, and major function is to allow the frequency spectrum of g (t) existing for the interference
Part is decayed, and corresponding power spectral density is：
Sg(f)=Sp(f)|H(f)|2；
The present embodiment first uses rectangular window function h (t), i.e.,：
In formula, α is decaying and 0≤α≤1, i.e. rectangular window are arranged in interference signal place frequency range and decay.
Interference i (t) variance is accordingly：
In formula, f*∈[f1,fM]。
Signal noise interference ratio SNIR γ ' is accordingly：
In formula,
Although because stencil design can lose some signal energy s2But as long as attenuation factor is sufficiently large, Ke Yilingγ' ratio
γ is much bigger.System performance improvement is obtained, i.e., γ ' > γ, α must satisfy：
α=0 is enabled, then signal noise interference ratio SNIRγ' be：
In this way, interference signal can effectively be inhibited by correlation receiver stencil design, and system performance can obtain
To very big promotion, without knowing the phase or amplitude of interference.
Use rectangular window function for convenience of explanation above.Keep frequency spectrum more smooth and reduce secondary lobe, other window letters can be used
Number such as peaceful (Hanning) window function of the Chinese.The improvement of system performance is also verified in simulations.
The present embodiment inhibits the system architecture diagram of ultra-wideband impulse radio interference detailed using correlation receiver stencil design
As shown in Figure 2.Correlation is carried out to signal is received using correlation receiver in ultra wide band UWB demodulation module, then sampling judgement is defeated
Corresponding signal sequence out.The case where correlation receiver template can be estimated according to interference signal is designed, using rectangular window
Function or Hanning window function etc..The equipment such as sweep generator can be used in interference signal estimation, or such as using signal power Power estimation
AR model power Power estimation method combination Levinson-Durbin scheduling algorithm need to only know the frequency range of interference signal.Template is set
Meter will be carried out for these interference bands.Specific steps in receiving end are as described above.
Particularly, in the present embodiment, if random variation occurs for interference signal frequency, correlation receiver stencil design is also
Further it can become adaptive template according to interference signal frequency range dynamic adjustment and design.The random frequency range of interference signal is by adaptive
Power Spectral Estimation is answered to provide, correlation receiver is final to realize that UWB is received according to disturbed condition real-time perfoming stencil design and adjustment
Effective inhibition of the machine to random disturbances.
Specifically, in this example, it is assumed that ultra-wideband pulse (pulse rate per second 2 × 107A pulse) by one
The interference signal of BPSK modulation is destroyed, which is expressed as：
In formula, interference signal amplitude A=0.3, carrier frequency fi=5.5GHz, and carrier phaseInterference signal number
The general and data rate such as taking according to s (t) ∈ {+1, -1 } is 1 × 107bits/s。
Ignore the influence of AWGN noise.The ultra-wideband impulse signal and correlation receiver output waveform p of undisturbed influence
(t) it is detailed in Fig. 4 (a) and (b) respectively.The disturbed ultra-broadband signal destroyed is detailed in Fig. 4 (c).Because of the Amplitude Ration of interference signal
Ultra-wideband impulse radio signal is much bigger, and ultra-wideband impulse signal is submerged, and the interference signal of BPSK modulation is only by micro-
Small influence.The ultra-broadband signal received and correlation receiver template signal p (t) similarity for being disturbed destruction are very low, related
Property is very poor, and corresponding correlation receiver output signal is detailed in Fig. 4 (d).At this time receive signal and correlation receiver template signal
Cross-correlation coefficient (normalization) be ρsi=-0.18.Window function method (rectangle is used in [5GHz 6GHz] frequency range for interference
Window and Hanning window) design correlation receiver template waveforms be detailed in Fig. 4 (e).After the correlation receiver template specially designed,
Greatly inhibited it can be seen that being interfered in correlation receiver output, is detailed in Fig. 4 (f).Rectangular window and Han Ning are used under disturbed condition
The correlation receiver output (shown in such as Fig. 4 (f)) of window design template is with correlation receiver output waveform under noiseless situation (as schemed
Shown in 4 (b)) cross-correlation coefficient be respectively ρrec=0.93 and ρhan=0.97.The result of Hanning window is used as expected
It is more preferable than using rectangular window.In this way, the available great promotion of the performance of ultra-wideband communication system.
Another embodiment is that ultra-wideband pulse is interfered by the WLAN signal from 5.15GHz -5.825GHz, as width
With interference example, using correlation receiver template shown in Fig. 4 (e), correlation receiver export result with it is several shown in Fig. 4 (f)
It is identical.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (7)
1. a kind of method for inhibiting ultra-wideband impulse radio interference using correlation receiver stencil design, it is characterised in that：Packet
Include following steps：
Step S1：Interference signal is estimated, the frequency range of interference signal is obtained；
Step S2：Correlation receiver stencil design is carried out according to the frequency range of interference signal；
Step S3：Emit ultra wide band useful signal, in correlation reception pusher side using the designed template of step S2 to reception signal
It carries out related；
Step S4：Judgement is sampled to the correlated results of step S3, obtains corresponding output signal sequence.
2. it is according to claim 1 it is a kind of using correlation receiver stencil design inhibit ultra-wideband impulse radio interference
Method, it is characterised in that：In step S1, interference signal is estimated using sweep generator or power spectrum signal.
3. it is according to claim 1 it is a kind of using correlation receiver stencil design inhibit ultra-wideband impulse radio interference
Method, it is characterised in that：Correlation receiver template is designed in step S2 using window function or filter.
4. it is according to claim 3 it is a kind of using correlation receiver stencil design inhibit ultra-wideband impulse radio interference
Method, it is characterised in that：Step S2 uses window function, for the decaying frequency range of the frequency range adjustment window function of interference signal.
5. it is according to claim 4 it is a kind of using correlation receiver stencil design inhibit ultra-wideband impulse radio interference
Method, it is characterised in that：The window function is rectangular window function, specifically includes following steps：
Step S21：The template waveforms of related window function are designed as：
G (t)=p (t) * h (t)；
In formula, * represents convolution, and p (t) indicates ultra-wideband pulse, and h (t) is the window function of design, and major function is to allow the frequency of g (t)
Spectrum decays in the existing part of interference, and corresponding power spectral density is：
Sg(f)=Sp(f)|H(f)|2；
In formula, Sg(f) spectral density for being g (t), Sp(f) spectral density for being p (t), H (f) are the spectral density of h (t)；
Step S22：Frequency range where rectangular window is arranged in interference signal decays, if
In formula, enable α for decaying, and 0≤α≤1, f1With fMRespectively two endpoints in interference band section；
Step S23：Obtain corresponding interference variance E (I2) and corresponding signal noise interference ratio SNIR γ '；
Wherein, according to mean value theorem, corresponding interference variance is：
In formula, f*∈[f1,fM], f*Indicate the frequency separation [f obtained by mean value theorem1,fM] in a certain Frequency point, Sp(f*)
Indicate that ultra-short pulse is punched in f*Spectral density, Si(f) spectral density of interference signal, R are indicatedi(0) indicate interference signal when
Between difference be 0 when auto-correlation function, α is decay factor；
Signal noise interference ratio SNIR γ ' is accordingly：
In formula, E (N2) be AWGN noise mean square deviation, s2For signal energy, τ ' is the time difference of auto-correlation function, N0For Gauss
Twice of Power Spectrum of White Noise density, RgIt (0) is auto-correlation of the correlation receiver design template waveform g (t) when the time difference is 0
Function, Rp(τ ') is real even function, indicates auto-correlation function of the ultra-wideband impulse radio signal when the time difference is τ '；
Step S24：Decay factor is enabled to meet the following conditions：
6. it is according to claim 4 it is a kind of using correlation receiver stencil design inhibit ultra-wideband impulse radio interference
Method, it is characterised in that：The window function is Hanning window function.
7. it is according to claim 1 it is a kind of using correlation receiver stencil design inhibit ultra-wideband impulse radio interference
Method, it is characterised in that：In step S3, the ultra wide band useful signal is believed after being modulated by the bit stream that signal source exports in AWGN
It is transmitted on road.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061790A (en) * | 2019-04-03 | 2019-07-26 | 北京环境特性研究所 | Inhibit the method for radio frequency interference in a kind of frequency sweep RCS test |
| CN114095967A (en) * | 2021-11-19 | 2022-02-25 | 电子科技大学 | Method for evaluating out-of-band interference of ultra-wideband signal |
| RU2797983C1 (en) * | 2022-09-21 | 2023-06-13 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации | Ultra-wideband radio communication device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008054012A (en) * | 2006-08-24 | 2008-03-06 | Matsushita Electric Works Ltd | Wireless receiver |
| CN103873111A (en) * | 2014-03-25 | 2014-06-18 | 山东大学 | Narrow-band interference suppression system and method adopting compressed sensing technology and used for pulse ultra wideband receiver |
-
2018
- 2018-06-05 CN CN201810570417.XA patent/CN108900211A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008054012A (en) * | 2006-08-24 | 2008-03-06 | Matsushita Electric Works Ltd | Wireless receiver |
| CN103873111A (en) * | 2014-03-25 | 2014-06-18 | 山东大学 | Narrow-band interference suppression system and method adopting compressed sensing technology and used for pulse ultra wideband receiver |
Non-Patent Citations (1)
| Title |
|---|
| XUFANG WANG: "Interference cancellation in impulse radio", 《香港大学学术库》 * |
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| CN110061790A (en) * | 2019-04-03 | 2019-07-26 | 北京环境特性研究所 | Inhibit the method for radio frequency interference in a kind of frequency sweep RCS test |
| CN110061790B (en) * | 2019-04-03 | 2021-07-09 | 北京环境特性研究所 | Method for inhibiting radio frequency interference in sweep frequency RCS test |
| CN114095967A (en) * | 2021-11-19 | 2022-02-25 | 电子科技大学 | Method for evaluating out-of-band interference of ultra-wideband signal |
| CN114095967B (en) * | 2021-11-19 | 2023-03-31 | 电子科技大学 | Method for evaluating out-of-band interference of ultra-wideband signal |
| RU2797983C1 (en) * | 2022-09-21 | 2023-06-13 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации | Ultra-wideband radio communication device |
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