CN1776447A - GPS signal blind zone covering device - Google Patents
GPS signal blind zone covering device Download PDFInfo
- Publication number
- CN1776447A CN1776447A CNA2005100196605A CN200510019660A CN1776447A CN 1776447 A CN1776447 A CN 1776447A CN A2005100196605 A CNA2005100196605 A CN A2005100196605A CN 200510019660 A CN200510019660 A CN 200510019660A CN 1776447 A CN1776447 A CN 1776447A
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- gps signal
- gps
- antenna
- amplifier
- signal
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Abstract
The GPS signal covering equipment includes GPS signal source, antenna, filter, amplifier and indoors covering system. In order to introduce GPS signal source, the installed outdoor receiving antenna is connected to filter, amplifier and the indoors covering system in sequence. Introducing GPS signal from wide place, where there is no shielding object for viewing sky directly, the invention magnifies GPS signal and covers place, where GPS signal is needed. Advantages are: (1) capable of amplifying GPS signal, increasing efficiency of GPS receiving device; (2) GPS signal covers place, where there is no GPS signal before such as in doors, or in place of having strong electromagnetic interference; (3) large covering area of signal and good effect.
Description
Technical field
The present invention relates to cover open introducing global position system GPS (the Global Position System) signal that to look at sky straight, and gps signal is amplified the technical equipment that covers the appointed area that needs the use gps signal from nothing.
Background technology
In recent years, along with the popularization of GPS global-positioning technology, the range of application of GPS is more and more wider, and it has more application at aspects such as location navigation, geographical mapping, travels at one's own expense.And various application progressively improve the requirement of gps signal.Since the strength ratio of gps signal itself a little less than, thereby in some less zones of visual sky area, because the aerial gps satellite in its visual sky is less or do not have at all, so do not receive gps signal basically.In addition since the gps signal that arrives ground a little less than, a little less than the obstacle penetration capacity, make indoor or underground, be not receive gps signal fully.The mobile device of present various use gps signals then appears at indoor or subterranean zone through regular meeting, so need indoor or underground gps signal blind area is carried out the covering of gps signal under many occasions.The demand that outdoor gps signal is incorporated into various blind areas has so just been arranged.The kind equipment that the gps signal blind zone covering device comes to this: it has realized gps signal is incorporated into the function that the gps signal blind area covers.
Technical term:
1, GPS (Global Position System) is navigation, time service and the positioning system of U.S.'s development.
2, LNA (lower noise amplify) low noise amplifier.
3, PA (power amplify) power amplifier.
4, cavity body filter: the main effect of cavity body filter is filtering, increases the isolation between the uplink and downlink.
5, band is outer suppresses: be meant the inhibition ability to the signal at the relative centre frequency of the signal place beyond the off-center frequency.
6, gain: be meant in linear working range amplifying power to input signal.
Summary of the invention
The objective of the invention is provides a kind of GPS signal blind zone covering device in order to address the above problem, and gps signal is introduced and covered given place.
The present invention includes gps signal source, antenna, wave filter, amplifier and indoor covering system, installation room receives antenna outward and introduces the gps signal source, and links to each other with wave filter, amplifier, wave filter and indoor covering system successively.Used antenna is an Outdoor omni-directional antenna, and frequency range is 1570.42MHZ to 1580.42MHz.The frequency range of used wave filter is at 1570.42MHZ to 1580.42MHz.
The major technique implementation method of this equipment is: the gps satellite signal that donor antenna receives is sent into the GPS mulch-laying machine, enter low noise amplifier after isolation is selected through wave filter, low noise amplifier is adjusted to signal level the output level of regulation, pass through bandpass filter then, connect indoor distributed covering system.Realize the purpose that signal is introduced and covered.
The present invention has following advantages:
1, can amplify gps signal, improve the receiving efficiency and the degree of accuracy of GPS receiving equipment.
2, realize the place of no gps signal, the gps signal for example indoor and place that electromagnetic interference (EMI) is stronger covers.
3, signal cover is big, effective.
Description of drawings
Fig. 1 single channel GPS mulch-laying machine theory diagram.
Fig. 2 hyperchannel GPS mulch-laying machine theory diagram.
Embodiment
Further specify the present invention below in conjunction with accompanying drawing.
The present invention includes gps signal source, antenna, wave filter, amplifier and indoor covering system, installation room receives antenna outward and introduces the gps signal source, and link to each other with wave filter, low noise amplifier, wave filter and indoor covering system successively, used antenna is an Outdoor omni-directional antenna, frequency range is 1570.42MHZ to 1580.42MHz, and the frequency range of used wave filter is at 1570.42MHZ to 1580.42MHz.
The used wave filter of the present invention, amplifier interpellation
1, filters H XFLT1500-10D1, and to its requirement: (1), frequency: 1570.42MHZ--1580.42MHz; (2), insert loss:＜1.2dB; (3), passband fluctuation:＜0.4dB; (4), standing-wave ratio (SWR):＜1.2; (5), power capacity: 〉=100W; (6), group delay: 150ns (maximum in the band); (7), temperature :-40 ℃～70 ℃; (8), port type: SMA Female; (9), working relative humidity :≤95% (non-condensing).
2, low noise amplifier HXLNA150060A01B3, and to its requirement: (1), frequency: 1570.42MHZ-1580.42MHz; (2), gain: 55dB ± 2dB; (3), automatic electric-level control ALC:-5dBm-15dBm opens control, voltage range 0-10V, (0～10V) introduces by feedthrough capacitor control voltage, and control resolution reaches or is better than 50mV/dB, and output level increases with the increase of control voltage; (4), automatically the ATT: 〉=30dB that decays, voltage range 0-10V, control voltage is introduced by feedthrough capacitor, and control resolution reaches or is better than 50mV/dB, and the ATT pad value reduces with the increase of control voltage; (5), output detects: voltage is to introduce by feedthrough capacitor, voltage range 0-5V, sensing range reaches or is better than-5dBm-15dBm, detection resolution reaches or is better than 50mV/dB, voltage increases with the enhancing of detection signal; (6), standing-wave ratio (SWR) :≤1.3; (7), noise figure (maximum gain) :≤1.3; (8), the outer: @f0-90MHz 〉=25dB (f0 is a center frequency point) that suppresses of band; (9), supply voltage :+12VDC, supply voltage is to introduce by feedthrough capacitor.
Fig. 1, Fig. 2 have illustrated the flow graph of radio frequency rf signal among the present invention.At first be installed in outdoor GPS receiving antenna gps signal is incorporated into the gps signal overlay device, filter out non-gps signal by wave filter then, signal after will filtering is again sent into amplifier, filter apparatus, outputs to indoor covering system then, can realize the covering of indoor GPS signal.
Claims (3)
1, global position system GPS signal overlay device, comprise gps signal source, antenna, wave filter, amplifier and indoor covering system, it is characterized in that: installation room receives antenna outward and introduces the gps signal source, and links to each other with wave filter, amplifier, wave filter and indoor covering system successively.
2, according to the described equipment of claim 1, it is characterized in that: used antenna is an Outdoor omni-directional antenna, and frequency range is 1570.42MHZ to 1580.42MHz.
3, according to the described equipment of claim 1, it is characterized in that: the frequency range of used wave filter is at 1570.42MHZ to 1580.42MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100196605A CN1776447A (en) | 2005-10-26 | 2005-10-26 | GPS signal blind zone covering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100196605A CN1776447A (en) | 2005-10-26 | 2005-10-26 | GPS signal blind zone covering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1776447A true CN1776447A (en) | 2006-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100196605A Pending CN1776447A (en) | 2005-10-26 | 2005-10-26 | GPS signal blind zone covering device |
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| Country | Link |
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| CN (1) | CN1776447A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011080541A1 (en) | 2009-12-31 | 2011-07-07 | Sabanci Universitesi | Indoor positioning system based on gps signals and pseudolites with outdoor directional antennas |
| CN101542309B (en) * | 2006-11-17 | 2012-04-25 | 朗讯科技公司 | Geo-location using distributed composite GPS signals |
| CN101849195B (en) * | 2007-10-03 | 2013-01-23 | 测位卫星技术株式会社 | Position information providing system indoor transmitter and method for providing position information |
| CN110221315A (en) * | 2019-06-27 | 2019-09-10 | Oppo广东移动通信有限公司 | Indoor locating system and method, terminal, trunking, electronic equipment |
| CN111538038A (en) * | 2020-04-21 | 2020-08-14 | 西安交通大学 | Method for realizing GPS satellite signal indoor coverage system |
-
2005
- 2005-10-26 CN CNA2005100196605A patent/CN1776447A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101542309B (en) * | 2006-11-17 | 2012-04-25 | 朗讯科技公司 | Geo-location using distributed composite GPS signals |
| CN101849195B (en) * | 2007-10-03 | 2013-01-23 | 测位卫星技术株式会社 | Position information providing system indoor transmitter and method for providing position information |
| WO2011080541A1 (en) | 2009-12-31 | 2011-07-07 | Sabanci Universitesi | Indoor positioning system based on gps signals and pseudolites with outdoor directional antennas |
| CN110221315A (en) * | 2019-06-27 | 2019-09-10 | Oppo广东移动通信有限公司 | Indoor locating system and method, terminal, trunking, electronic equipment |
| CN111538038A (en) * | 2020-04-21 | 2020-08-14 | 西安交通大学 | Method for realizing GPS satellite signal indoor coverage system |
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