CN103412288A - All-solid-state X-band portable radar beacon machine and signal processing method thereof - Google Patents
All-solid-state X-band portable radar beacon machine and signal processing method thereof Download PDFInfo
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- CN103412288A CN103412288A CN2013102735794A CN201310273579A CN103412288A CN 103412288 A CN103412288 A CN 103412288A CN 2013102735794 A CN2013102735794 A CN 2013102735794A CN 201310273579 A CN201310273579 A CN 201310273579A CN 103412288 A CN103412288 A CN 103412288A
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Abstract
The invention discloses a all-solid-state X-band portable radar beacon machine and a signal processing method thereof. An antenna receives an eternal interrogation signal which then enters a microwave receiver through a duplexer; the microwave receiver carried out low noise amplification, down conversion to an intermediate frequency, filtering, amplification, logarithmic detection, linear amplification to the interrogation signal and then transmits the interrogation signal into a digital processing circuit; the digital processing circuit analyzes and processes the interrogation signal, and outputs a control signal to a microwave transmitter, so as to control the microwave transmitter to receive and transmit a time-sharing and and modulate a transmitting signal; the transmitting signal goes through the antenna and responds to an external side through the diplexer; a microwave frequency source supplies a frequency source for the microwave receiver and the microwave transmitter; and a power conversion circuit provides a variety of power supplies needed by an electronic system. In the invention, the problems of the small operating distance, low reliability, heavy weight, large volume, working mode being incapable of responding communication, single transmitting code, strict use environment requirement, and inflexible and inconvenient use in a conventional beacon machine are solved.
Description
Technical field
The invention belongs to the navigator field, be specifically related to a kind ofly to can be applicable to navigate, locate, all solid state X-band portable radar Radio Beacon in the dual-use fields such as search and rescue, air control, and corresponding signal processing method.
Background technology
The radar beacon machine is that a kind of energy receives the inquiry of a certain frequency range radar, and uses another frequency of same frequency range to answer the navigator of inquiry, belongs to and replys the formula Radio Beacon.
The portable radar Radio Beacon can be carried by the ground staff, on ground, sets up during work, is mainly used in receiving and answering the inquiry of airborne, carrier-borne or other radar.Be operated in the radar beacon machine of X-band (frequency is at the radio waveband of 8～12GHz), be subjected to weather effect little, especially, in the situation of rainy day, greasy weather and poor visibility, can bring into play huge effect.
Traditional portable radar Radio Beacon, in order to reach operating distance far away, needs to adopt electron tube to produce powerful transmitting.There are the inferior positions such as reliability is low, volume is large in the use of electron tube.Secondly, traditional portable radar Radio Beacon only has the single power supply interface, can't meet the user demand of different power supply environment, and in use, dirigibility is poor.Traditional portable radar Radio Beacon can only be launched a kind of fixing coded signal.
On market, also have the Radio Beacon of some kinds, some operating distance is less, and what have can't work under complexity, severe environmental conditions, some dependence GPS, and can only transmitting of having belongs to one-way fashion work.Although some is comparative maturity, at telecommute, reply the aspects such as communication, complex conditions adaptability obvious limitation is arranged.
Summary of the invention
The problems referred to above for existing portable radar Radio Beacon, the applicant is through Improvement, provide that a kind of operating distance is far away, coding form is various and adjustable, volume is little, lightweight, reliability is high, can adapt to multiple rugged surroundings, all solid state X-band portable radar Radio Beacon of applicable number of different types power environment, and corresponding signal processing method.
Technical scheme of the present invention is as follows:
A kind of all solid state X-band portable radar Radio Beacon, comprise antenna, diplexer, microwave receiver, digital processing circuit, microwave transmitter, Microwave Frequency Source and power-switching circuit; Described antenna is connected with diplexer, microwave receiver, digital processing circuit and microwave transmitter are linked in sequence between the input/output terminal of described diplexer, described Microwave Frequency Source provides frequency source for microwave receiver, microwave transmitter, and described power-switching circuit provides power supply for above-mentioned each circuit module.
Its further technical scheme is: described antenna comprises omnidirectional antenna and directional antenna.
Its further technical scheme is: also comprise self-check control circuit, described self-check control circuit is connected with the input end of microwave receiver.
And its further technical scheme is: described each circuit module adopts the total solidity electronic components and parts.
The present invention also provides a kind of signal processing method of all solid state X-band portable radar Radio Beacon, comprise the following steps: after omnidirectional antenna or directional antenna receive the interrogating signal of assigned frequency, interrogating signal enters frequency mixer through diplexer, directional coupler, limiter, with the local oscillation signal mixing, produce intermediate-freuqncy signal; Intermediate-freuqncy signal, after filtering, amplification, logarithmic detector, the linear amplification, is given to the adaptive threshold circuit; Trigger pulse of adaptive threshold circuit output is to coding circuit, and coding circuit is by selected coded system output pulse code; Pulse code enters power supply modulator circuit, and the output switch that control transmits and the power supply of transmission channel, produce pulse modulated HIGH-POWERED MICROWAVES signal, through diplexer, is transferred to antenna and outwards launches, and receives for inquiry side.
Useful technique effect of the present invention is:
Maximum operating range of the present invention can reach beyond 80km; Two classes are arranged, and totally 25 kinds of transponder pulse forms are available; Three kinds of power supply types be can adapt to, 12VDC, 24VDC and civil power 220VAC are respectively; Adopt all solid state integrated circuit (IC) design, reliability is high, volume is little, lightweight, and weight is less than 2.5kg; Operating temperature range-35 ℃～+ 50 ℃; Can adapt to multiple environmental form, such as rainfall, sand dust, damp and hot, mould, salt fog etc.
The invention solves conventional beacon machine or operating distance little, or reliability is lower, or Heavy Weight, volume are large, or mode of operation can't reply communication, or launching code is single, or environment for use is strict, use underaction problem easily.
The advantage that the present invention adds provides in embodiment description partly below, and part will become obviously from the following description, or recognize by practice of the present invention.
The accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Fig. 2 is Microwave Frequency Source circuit theory diagrams of the present invention.
Fig. 3 is power-switching circuit schematic diagram of the present invention.
Fig. 4 is self-check control circuit schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Portable radar Radio Beacon of the present invention mainly is comprised of antenna and main frame, also has in addition the parts such as service cable, lithium battery.Fig. 1 shows technical schematic diagram of the present invention, and as shown in Figure 1, antenna 1 is divided into omnidirectional antenna and directional antenna; Main frame is the Integrated Electronic System that comprises diplexer 2, microwave receiver 3, digital processing circuit 4, microwave transmitter 5, Microwave Frequency Source 6, power-switching circuit 7 and optional self-check control circuit 8.
In Fig. 1, the interrogating signal of the outside received by antenna 1, enter microwave receiver 3 through diplexer 2; 3 pairs of interrogating signals of microwave receiver carry out low noise amplification, downconvert to intermediate frequency, and, after intermediate-freuqncy signal is carried out to filtering, amplification, logarithmic detector, the linear amplification, give digital processing circuit 4 by electric signal; 4 pairs of signals of digital processing circuit carry out analyzing and processing, output control signals to microwave transmitter 5, control the transmitting-receiving time-sharing work of microwave transmitter 5, and modulate transmitting.Transmit and to outside, replied by antenna 1 through diplexer 2.Microwave Frequency Source 6 provides work required frequency source for microwave receiver 3, microwave transmitter 5.Self-check control circuit 8, for generation of an analog receiving signal, is sent into microwave receiver 3 and is done the self check processing.Power-switching circuit 7 provides electronic system of the present invention inner required various power supplys.
Below each ingredient of the present invention is specifically described respectively.
Antenna 1: portable radar Radio Beacon of the present invention is equipped with the selection when actual of two kinds of antennas, omnidirectional antenna uses one dimension harmonic oscillation type gap antenna, radiating guide by eight narrow walls incline the seam and four wide wall transverse joints form, narrow wall inclines seam as the primary radiation source, in symmetria bilateralis, give and open four seams, the adjacent slits vergence direction is alternately opposite, and each stitches the synthetic horizontal polarized wave parallel with waveguide axis of radiation field.Directional antenna is in 4 parallel resonance gaps of center line design on a narrow limit of waveguide, and resonance length is half of operation wavelength, and spacing is half waveguide wavelength, and the inclination angle, gap will meet coupling in parallel requirement.R-joining alternately tilts to realize cophase detector, for guaranteeing polarization mismatch loss minimum, designs 4 symmetrical R-joinings simultaneously, offsets unwanted horizontal polarized wave.Two kinds of antennas can be selected as required, and omnidirectional antenna can be realized all standing in 360 ° of levels, but antenna gain is lower, and operating distance is relatively near.In the directional antenna level orientation, have locality, but antenna gain is higher, can realizes farther operating distance.Antenna house is higher owing to relating to frequency, and medium covers the performance that can affect antenna, so windproof, husky, the rain of radome material selection energy, and on the little fiberglass of electrical property impact, structure is the taper of individual layer thin-walled.Cover thickness is less than 1.5mm, reaches 1/20 of antenna operation wavelength, and impact can be ignored on antenna performance.
Microwave receiver 3: comprise directional coupler, limiter and frequency mixer.Adopt typical superheterodyne receiver pattern, by antenna reception to interrogating signal by low noise amplification, downconvert to intermediate frequency with local oscillator LO, intermediate-freuqncy signal is through filter and amplification, amplifies the higher dynamic range of realization by logarithmic detector.
Digital processing circuit 4: comprise adaptive threshold circuit and coding circuit.The effect of adaptive threshold circuit is to stablize the answering delay time, make it irrelevant with the level that receives signal, the work trigger pip XMT of this circuit is from modulating unit, when modulating pulse output is arranged, this signal is in advance by the output shielding of adaptive threshold circuit, prevents the transponder pulse coding circuit that bleeds.Coding circuit receives and arrives to the signal of adaptive threshold circuit, according to the coded system output pre-set, and as the control signal that receives, launches time-sharing work, and the modulate emission pulse.
Microwave transmitter 5: comprise power supply modulator circuit.Adopt all solid-state transmitter technology to realize, use the approximately GaAs power amplifier of 30 watts of saturation output power, realize the requirement that complete machine output is greater than 20 watts.And the amplifier drain voltage is modulated, can improve greatly the power-efficient of radiating circuit.The solid state transmitter technology has that the life-span is long, reliability is high, volume is little, lightweight, the advantage that efficiency is high, easy to maintenance, cost is low.To realizing the miniaturization of described radar beacon machine, high reliability is significant.
Microwave Frequency Source 6, as shown in Figure 2: adopt three independently phase-locked loop circuit respectively as emission Ft, local oscillator LO, receive the point-frequency signal source of F0.Circuit adopts crystal oscillator as reference source.Each phaselocked loop comprises 3 element circuits, phase detector, loop filter and voltage controlled oscillator.Phase detector compares the phase place of the phase place of periodic input signal and voltage controlled oscillator signal, the output signal of phase detector is the tolerance of phase error between these two input signals, this error voltage carries out filtering by loop filter afterwards, and being used as controlling voltage, the output of loop filter delivers to voltage controlled oscillator, control the frequency that voltage has changed voltage controlled oscillator, to reduce the phase error between input signal and voltage controlled oscillator, until null phase error.Realize frequency stabilization output.
Power-switching circuit 7, as shown in Figure 3: can adapt to three kinds of power supply types, the one, vehicle-mounted or battery 12VDC, the 2nd, vehicle-mounted 24VDC, the 3rd, civil power 220VAC.By the different wire harness of same cable, enter, process and obtain the inner required various power supplys of described portable radar Radio Beacon through power supply.
Self-check control circuit 8, as shown in Figure 4: frequency source produces the interrogating signal of a simulation, simulates the described portable radar Radio Beacon course of work, differentiates by receiving intermediate frequency signal detection and the detection that transmits whether it working properly.The oneself who realizes described portable radar Radio Beacon detects.
Signal processing method of the present invention is as follows:
After omnidirectional antenna or directional antenna received the interrogating signal of assigned frequency, interrogating signal entered frequency mixer through diplexer, directional coupler, limiter, and the local oscillation signal mixing with Microwave Frequency Source produces, produce intermediate-freuqncy signal.Intermediate-freuqncy signal, after filtering, amplification, logarithmic detector, the linear amplification, is given to the adaptive threshold circuit; Trigger pulse of adaptive threshold circuit output is to coding circuit, and coding circuit is by selected coded system output pulse code; Pulse code enters power supply modulator circuit, and the output switch that control transmits and the power supply of transmission channel, produce pulse modulated HIGH-POWERED MICROWAVES signal, through diplexer, is transferred to antenna and outwards launches, and receives for inquiry side.
In sum, frequency of operation of the present invention is at X-band, inner microwave transmitter, microwave receiver, digital processing circuit, power supplys etc. adopt the total solidity electronic components and parts, the launched microwave signal power is up to more than 20W, receiving sensitivity is better than-and 75dBm(is that minimum discernible signal is about 3.16 * 10-11 watt), built-in X-band phase-locked loop frequency source produces the microwave signal of 3 frequencies, the signal frequency precision is high and stable, band transmitting-receiving self-checking function, be with multiple launching code adjustable function, dual-mode antenna with various modes, can adapt to three kinds of Power supply conditions, the Miniaturized portable design, volume is little, lightweight.Can be used for the Military and civil fields such as navigation, location, search and rescue.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive without departing from the basic idea of the present invention or associate, within all should thinking and being included in protection scope of the present invention.
Claims (5)
1. an all solid state X-band portable radar Radio Beacon, is characterized in that, comprises antenna, diplexer, microwave receiver, digital processing circuit, microwave transmitter, Microwave Frequency Source and power-switching circuit; Described antenna is connected with diplexer, microwave receiver, digital processing circuit and microwave transmitter are linked in sequence between the input/output terminal of described diplexer, described Microwave Frequency Source provides frequency source for microwave receiver, microwave transmitter, and described power-switching circuit provides power supply for above-mentioned each circuit module.
2. all solid state X-band portable radar Radio Beacon according to claim 1, is characterized in that, described antenna comprises omnidirectional antenna and directional antenna.
3. all solid state X-band portable radar Radio Beacon according to claim 1, is characterized in that, also comprise self-check control circuit, described self-check control circuit is connected with the input end of microwave receiver.
4. according to claim 1 or 2 or 3 described all solid state X-band portable radar Radio Beacon, it is characterized in that, described each circuit module adopts the total solidity electronic components and parts.
5. signal processing method of all solid state X-band portable radar Radio Beacon as claimed in claim 1, it is characterized in that comprising the following steps: after omnidirectional antenna or directional antenna receive the interrogating signal of assigned frequency, interrogating signal enters frequency mixer through diplexer, directional coupler, limiter, with the local oscillation signal mixing, produce intermediate-freuqncy signal; Intermediate-freuqncy signal, after filtering, amplification, logarithmic detector, the linear amplification, is given to the adaptive threshold circuit; Trigger pulse of adaptive threshold circuit output is to coding circuit, and coding circuit is by selected coded system output pulse code; Pulse code enters power supply modulator circuit, and the output switch that control transmits and the power supply of transmission channel, produce pulse modulated HIGH-POWERED MICROWAVES signal, through diplexer, is transferred to antenna and outwards launches, and receives for inquiry side.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820219A (en) * | 2015-05-25 | 2015-08-05 | 扬州宇安电子科技有限公司 | Active radar beacon machine and processing method thereof based on virtual target |
| CN104833965A (en) * | 2015-05-25 | 2015-08-12 | 扬州宇安电子科技有限公司 | Radar beacon machine and diversity radar signal processing method thereof |
| CN104865557A (en) * | 2015-05-25 | 2015-08-26 | 扬州宇安电子科技有限公司 | Method improving radar active beacon machine precision |
| CN105572665A (en) * | 2015-12-11 | 2016-05-11 | 无锡市雷华科技有限公司 | Coast defense searching radar system |
| CN106291511A (en) * | 2016-10-21 | 2017-01-04 | 兰州大学 | A kind of laser radar system multi-channel back wave signal adapting device |
| CN106501805A (en) * | 2016-10-18 | 2017-03-15 | 合肥浮点信息科技有限公司 | A kind of electronic product with spacing speed aid prompting function |
| CN108445305A (en) * | 2018-03-13 | 2018-08-24 | 南京信息工程大学 | A kind of mobile base station antenna electrical tilt angle detecting system and method |
| CN108768438A (en) * | 2018-08-21 | 2018-11-06 | 无锡华测电子***有限公司 | A kind of 64 channel transmitting-receiving subassembly of solid-state |
| CN110311698A (en) * | 2019-07-15 | 2019-10-08 | 无锡华测电子***有限公司 | A kind of miniature drone transmitting-receiving subassembly based on three-dimensional assembling and MCM technology |
| CN114966582A (en) * | 2022-07-29 | 2022-08-30 | 成都市克莱微波科技有限公司 | Microwave transceiving assembly self-checking method and system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104833965A (en) * | 2015-05-25 | 2015-08-12 | 扬州宇安电子科技有限公司 | Radar beacon machine and diversity radar signal processing method thereof |
| CN104865557A (en) * | 2015-05-25 | 2015-08-26 | 扬州宇安电子科技有限公司 | Method improving radar active beacon machine precision |
| CN104820219A (en) * | 2015-05-25 | 2015-08-05 | 扬州宇安电子科技有限公司 | Active radar beacon machine and processing method thereof based on virtual target |
| CN105572665A (en) * | 2015-12-11 | 2016-05-11 | 无锡市雷华科技有限公司 | Coast defense searching radar system |
| CN106501805A (en) * | 2016-10-18 | 2017-03-15 | 合肥浮点信息科技有限公司 | A kind of electronic product with spacing speed aid prompting function |
| CN106291511B (en) * | 2016-10-21 | 2019-06-11 | 兰州大学 | A kind of laser radar system multi-channel back wave signal adapting device |
| CN106291511A (en) * | 2016-10-21 | 2017-01-04 | 兰州大学 | A kind of laser radar system multi-channel back wave signal adapting device |
| CN108445305A (en) * | 2018-03-13 | 2018-08-24 | 南京信息工程大学 | A kind of mobile base station antenna electrical tilt angle detecting system and method |
| CN108768438A (en) * | 2018-08-21 | 2018-11-06 | 无锡华测电子***有限公司 | A kind of 64 channel transmitting-receiving subassembly of solid-state |
| CN108768438B (en) * | 2018-08-21 | 2023-10-10 | 无锡华测电子***有限公司 | Solid 64-channel receiving and transmitting assembly |
| CN110311698A (en) * | 2019-07-15 | 2019-10-08 | 无锡华测电子***有限公司 | A kind of miniature drone transmitting-receiving subassembly based on three-dimensional assembling and MCM technology |
| CN114966582A (en) * | 2022-07-29 | 2022-08-30 | 成都市克莱微波科技有限公司 | Microwave transceiving assembly self-checking method and system |
| CN114966582B (en) * | 2022-07-29 | 2022-11-11 | 成都市克莱微波科技有限公司 | Microwave transceiving assembly self-checking method and system |
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