CN103176196A - Receiving method for interoperation receiver - Google Patents
Receiving method for interoperation receiver Download PDFInfo
- Publication number
- CN103176196A CN103176196A CN2013100681573A CN201310068157A CN103176196A CN 103176196 A CN103176196 A CN 103176196A CN 2013100681573 A CN2013100681573 A CN 2013100681573A CN 201310068157 A CN201310068157 A CN 201310068157A CN 103176196 A CN103176196 A CN 103176196A
- Authority
- CN
- China
- Prior art keywords
- signal
- receiver
- interoperability
- satellite
- mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention relates to a receiving method for an interoperation receiver. The receiving method is applied to an interoperation-compatible software receiver which can receive and process multiple navigation system satellite signals simultaneously and can still operate normally when only one navigation system satellite signal is received. The receiving method includes: firstly, receiving radio frequency of the satellite navigation signals by independent hardware resources; secondly, preliminarily judging the signals by the software receiver; thirdly, re-selecting signal receiving channels; and fourthly, calculating navigation and positioning. The receiving method fully utilizes flexibility of the interoperation receiver and maximizes the interoperation receiving function.
Description
Technical field
The present invention relates to interoperability reception technique field, be specifically related to a kind of receiving method of interoperability receiver.
Background technology
So-called compatible interoperability refers to the mutual utilization of navigation information between a plurality of satellite navigation systems, a navigation terminal can receive and utilize the signal of a plurality of satellite navigation systems simultaneously, thereby reach the purpose that improves navigation performance, still can work when receiving a navigational system signal separately simultaneously.Correspondence, the navigation terminal that has such ability just is known as the interoperability receiver.At present, the GNSS project that the whole world is being planned or implemented mainly comprises the dipper system of the GPS modernization of the U.S., the Galileo plan of European Union, Muscovite GLONASS recovery and modernization and China, can predict, in the near future, brand-new GNSS system will become the first-selection of whole world navigation.For the general user, can follow the tracks of the satellite-signal of a plurality of systems, be equivalent to obtain the satellite-signal of redundancy, thereby can have guaranteed integrity and the continuity of signal, improve system's navigation performance.
The interoperability receiver all has inborn advantage in many aspects, as due to the satellite-signal of accepting a plurality of systems, just therefore corresponding DOP value can reduce, is conducive to improve navigation and positioning accuracy; The number of satellite that can receive signal is many, and the redundance of information increases, the corresponding anti-cheating interference capability improving of receiver, and the autonomous integrity detectability strengthens simultaneously; Under the application conditions of some extreme terrains, can greatly improve the availability of satellite navigation, etc.
Along with the development of bridging technology, many countries all begin to study for the interoperability reception technique, and the interoperability receiver that wherein starts from the earliest American-European GPS and Galileo system has been obtained certain progress.But still Shortcomings in some aspects, have much room for improvement in other words:
(1), consider defining of compatible interoperability receiver, can receive simultaneously a plurality of systems satellite-signal at receiver carries out when navigator fix resolves, guarantee to receive extra manufacturing cost and structural complexity minimizes, namely have the structure of minimizing when receiver receives separately the satellite-signal of a system.Therefore, existing reception technique is too complicated, and the utilization factor of hardware is not high simultaneously;
(2), when receiver is processed a plurality of satellite navigation system signals simultaneously, the judgement of affiliated system and channel selecting etc. operate very complexes to received signal, at this moment, can bring into play software receiver upgrades flexibly and the advantage such as selectivity is strong at algorithm, namely select few hardware configuration of trying one's best, accomplish simultaneously the maximization of software configuration, signal processing as much as possible is put in software operates.
Summary of the invention
The object of the invention is to: the method for reseptance that a kind of interoperability receiver is provided, the method is applied in a kind of compatible interoperability software receiver that can receive simultaneously and process a plurality of navigational system satellite-signals and still can work when only receiving a navigational system satellite-signal, and this invention comprises: at first use independent hardware resource to carry out the radio frequency reception of satellite navigation signals; Secondly carry out the preliminary judgement of signal by software receiver; Passage is selected to received signal again; Carrying out at last navigator fix resolves.The present invention gives full play to the flexibility characteristics of interoperability receiver, accomplishes the maximization of interoperability receiver function.
The technical solution used in the present invention is: a kind of method of reseptance of interoperability receiver, the method makes the interoperability receiver can be operated in that single satellite system independently receives and the compatible interoperability of a plurality of satellite system receives two kinds of duties, and simultaneously, use is same set of hardware device.When being operated in single satellite system independence accepting state, be similar to common receiver, signal through down coversion, mixing, sample, catch, the step such as tracking, carry out at last navigator fix and resolve.During at a plurality of satellite navigation system interoperability state, correspondingly be divided into following signal treatment step when operation of receiver: (a) real space satellite RF signal receives; (b) the radio frequency adjustment of signal; (c) carry out the first order and second level down-converted, obtain the intermediate-freuqncy signal that several satellite-signals mix; (d) adopt identical bandpass filter and controllable gain amplifier that intermediate-freuqncy signal is processed, the intermediate-freuqncy signal that remains a plurality of system signals mixing that obtains; (e) use same analog to digital converter to carry out digitized sampling to the intermediate-freuqncy signal of simulation, obtain the baseband digital signal that several system signals mix, send into software processing module; (f) navigational satellite system under the signal in judgement software treatment channel; (g) subchannel independent processing one road signal, carry out the operations such as acquisition and tracking; (h) select the measured value of effective passage, and carry out optimum combination, carry out navigator fix and resolve.
Further, described receiver is a kind of GNSS interoperability receiver, uses single radio-frequency front-end to receive simultaneously the satellite-signal of a plurality of systems, wherein may comprise GPS, Galileo, GLONASS and dipper system.
Further, described GNSS interoperability receiver adopts classification mixing strategy, comprises first order down coversion and second level down coversion.The local oscillator that uses in corresponding down coversion mixing has fixing output frequency, wherein: what select during the mixing of first order down coversion is the local carrier frequency of 1582.581MHz, and what select during the down coversion mixing of the second level is the local carrier frequency of 13.299MHz.
Further, radiofrequency signal that described GNSS interoperability receiver receives is through after frequency conversion, and the signal of each system all is down-converted to intermediate-freuqncy signal below 10MHz.
Further, the mixing intermediate-freuqncy signal of described GNSS interoperability receiver is partly carried out base band signal process through together sending into software receiver after A/D converter, wherein, may comprise GPS, Galileo, GLONASS and dipper system signal in baseband signal.
Further, described GNSS interoperability receiver adopts same set of hardware device simultaneously the satellite-signal of each system to be received and processes, and wherein comprises at least GPS, Galileo, GLONASS and dipper system signal.Corresponding wave filter, the input-output characteristic of local oscillator is all fixed.
Further, the software processing part of described GNSS interoperability receiver comprises the judgement to contained system in baseband signal, the combination of channel selecting and measuring value and utilization.
The present invention's advantage compared with prior art is:
(1), the present invention uses minimum hardware configuration that the satellite-signal of multisystem is received and processes, corresponding hardware cost is low, hardware configuration is simple;
(2), the separating treatment of multisystem signal of the present invention carries out in software configuration, so the algorithm of receiver upgrades easylier, dirigibility is stronger;
(3), the present invention increased channel selecting and combination of measurements module, may for improving that the receiver bearing accuracy provides.
Description of drawings
Fig. 1 is receiver basic structure block diagram;
Fig. 2 is receiver hardware components structure;
Fig. 3 is the Receiver Software channel architecture;
Fig. 4 is the signal processing structure block diagram of software passage;
Fig. 5 is the basic block scheme of GPS software receiver track loop;
Fig. 6 chooses flow process for measuring passage.
Embodiment
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Reanalyse the definition of interoperability receiver: the signal that can receive simultaneously and utilize two or more satellite navigation systems, carrying out navigator fix resolves, can work when receiving a system signal, can obtain performance boost to a certain degree when receiving a plurality of system signal.Consider the normal operation when receiver is merely able to receive single satellite navigation system signals, corresponding hardware design should be as far as possible easy, be that the radio-frequency front-end part should be as far as possible similar or slightly different from common triangular web receiver, thereby reduce taking of unnecessary infrastructure resource; On the other hand, requirement on the structure function different for different system signal carrier frequency range, that the signal modulation system different, navigation message and the equal characteristic of spreading code structure are brought, the receiver that should as far as possible bring into play software definition uses dirigibility, and potential advantages that can implementation algorithm reconstruct when not changing hardware design.
Can be obtained by above analysis, receiver should mainly comprise hardware components and software section.Wherein, hardware components can be divided into again antenna part, radio-frequency front-end and analog to digital conversion part.As shown in Figure 1, the fundamental block diagram of software receiver:
Wherein, the satellite navigation simulating signal that antenna reception arrives, radio-frequency front-end by example, in hardware, be converted to intermediate-freuqncy signal, again by the analog-to-digital conversion device, after sampling, become the baseband signal of numeral, and catch accordingly, tracking, subframe identification, ephemeris and pseudorange resolves, satellite position calculation and receiver location resolve etc. that process is all realized by software.
Consider that antenna used herein and radio-frequency front-end need to possess the ability that receives simultaneously and process a plurality of navigational system satellite-signals, so hardware components should carry out following design, as shown in Figure 2:
In order to process simultaneously the 1559.052-1563.144MHz frequency band signals that comprises at least GPS1574.42-1576.42MHz L1 frequency band signals, Galileo1573.42-1577.42MHz frequency band signals, GLONASS1597.62-1605.62MHz frequency band signals and the Big Dipper, the bandpass filter of radiofrequency signal adjustment member should be the passband of 1559-1606MHz at least, and corresponding amplifier is basic similar to common receiver.
Down coversion part as for key, local oscillator 1 in suggestion first order down coversion optical mixing process produces the local carrier of the frequency between above-mentioned frequency range, as 1582.581MHz, for above mentioned at least 4 Satellite system signal gps signals, Galileo signal, GLONASS signal and dipper system signal, the centre frequency of the intermediate-freuqncy signal after the mixing of process first order down coversion will become respectively in the 21.483MHz frequency band of GPS7.161MHz, Galileo7.161MHz, GLONASS15.039-23.039MHz and the Big Dipper.Local oscillator 2 in the down coversion optical mixing process of the second level produces the local carrier of frequency between above-mentioned intermediate-frequency band, can select 13.299MHz herein, through after the down coversion mixing of the second level, the centre frequency of the intermediate-freuqncy signal of this moment will become GPS6.138MHz, Galileo6.138MHz, GLONASS1.74-9.74MHz and Big Dipper 8.184MHz.As mentioned above, after twice down coversion mixing, each system signal that contains all can be transformed in the intermediate-frequency band of 6-10MHz, can reduce on the one hand thus the performance requirement to image-reject filter before mixing, filtering, amplification and sampling functions after mixing become easily realize.
Different navigational system signals can be carried out identical processing for follow-up filtering and amplifieroperation for intermediate-freuqncy signal, until analog to digital conversion part, can use same sample frequency to process simultaneously the signal of each system, and the operation such as really decoded in the signal subchannel ground of each system, to carry out in last software section, thereby accomplish software is maximized, give full play to software configuration and change characteristics flexibly.Simultaneously, can find out,, fully without any impact with gps signal work independently as example for the navigation work of triangular web this moment, as follows when working independently: through the signal after the adjustment of hypothesis radio frequency be:
s(t)＝Ax(t-τ)D(t-τ)sin(2π(f
1+f
d)t+θ)
The signal that local oscillator produces is:
s
LO1(t)＝A
LO1sin(2πf
LO1t+θ
LO1)
f
LO1Be 1582.581MHz, through signal after first order frequency mixer be:
s
mix1(t)＝s(t)*s
LO1(t)
＝Ax(t-τ)D(t-τ)sin(2π(f
1+f
d)t+θ)A
LO1sin(2πf
LO1t+θ
LO1)
Mixing is by wave filter, and hypothesis is not temporarily considered Doppler shift again, and the intermediate-freuqncy signal of simulation is:
s
IF1(t)＝A
IF1x(t-τ)D(t-τ)sin(-2π(f
IF1)t+θ
IF1)
Wherein, f
IF1Be 7.161MHz.The negative sign of IF-FRE front can be thought the time domain performance of bilateral frequency, also can mention the front and put upside down as the positive and negative of whole signal, can identify and revise by the Software for Design in later stage.
Through signal after the frequency mixer of the second level be:
s
mix2(t)＝s
IF1(t)*s
LO2(t)
＝A
IF1x(t-τ)D(t-τ)sin(-2π(f
IF1)t+θ
IF1)A
LO2sin(2πf
LO2t+θ
LO2)
Mixing is by wave filter, and hypothesis is not temporarily considered Doppler shift again, and the intermediate-freuqncy signal of simulation is:
s
IF2(t)＝A
IF2x(t-τ)D(t-τ)sin(2π(f
IF2)t+θ
IF2)
Wherein, f
IF2Be 6.138MHz, be the intermediate frequency output frequency of whole down coversion frequency mixing module.
Subsequently, intermediate-freuqncy signal will be carried out the digitized sampling of simulating signal by intrinsic analog to digital converter, consider the constraint of Shannon's sampling theorem, and the intermediate-freuqncy signal frequency of this moment is no more than 10MHz, be not very high for the requirement of A/D converter.
Thus, can see, according to this design, not only can simplify hardware configuration in triangular web work as far as possible, can guarantee again the performance that interoperability receives simultaneously.As for, really with the process of each system signal separating treatment, will carry out in the base band signal process of software.Its software hyperchannel design is as follows:
Only list three passages in Fig. 3, but should comprise at least 8 paths in practical application.
Wherein, will carry out independently signal processing in each signalling channel, and comprise: under signal, the judgement of satellite navigation system, satellite-signal catches and the pseudorange amount of following the tracks of, measure an independent satellite and corresponding signal to noise ratio (S/N ratio) and carrier-to-noise ratio.Corresponding software architecture diagram is as follows:
As shown in Figure 4, under signal, the deterministic process of system is similar to slightly catching of gps signal, perhaps be called catching in advance of signal, namely the intermediate-freuqncy signal of numeral is carried out the exclusive signal capture identifying operation of various navigational system, as slightly catching of the CDMA C/A code of GPS, the correlated results of catching surpasses the words of default threshold value, the signal of corresponding system respective satellite is judged as existence, this passage carries out the operations such as follow-up tracking and pseudo range measurement as the proprietary passage of this signal, if do not reach default threshold value continue search.Yet, be different from traditional single satellite system signal receiver, after this is in and determines that the mixed signal that receives contains the signal of a certain of GPS or several satellites, still proceed search, namely search at least successively signal and the Big Dipper satellite signal of Galileo satellite-signal, GLONASS satellite, if the correlated results that obtains surpasses default threshold value equally, be designated as equally the signal that contains this this satellite of system.
Wherein, at least the gps signal processing module that comprises, Galileo signal processing module, GLONASS signal processing module and Big Dipper signal processing module are through the software section after modularized processing, can directly call after system's judgement under signal, the signal of judging is processed, realized being similar to the function of hardware reconstruct with this.
Take the judgement signal as GPS star signal as example, corresponding signal processing comprises that signal capture, code tracking, carrier track and navigation data extract, and carry out the calculating of pseudorange at last.Wherein, the acquisition procedure of signal can be divided into the various ways such as serial search, parallel search, does not describe in detail at this.And wherein have the tracking of loop can be as shown in Figure 5:
Obtain the measured value of oneself when each passage after, the measured value of transferring to again backward selects module to select, the measured value of picking out optimal channel participates in navigator fix and resolves, the standard of selecting comprises the signal carrier-to-noise ratio of passage and the measuring accuracy of pre-estimation separately, and the geometric dilution of precision after the tracking satellite combination of each passage institute:
(1) measured value that signal to noise ratio (S/N ratio) is surpassed the passage of predetermined threshold value is designated as effective channel measurement value;
(2) pre-estimation measurement error value in effective passage is designated as available channel lower than the passage of predetermined threshold value, and the satellite position that available channel is followed the tracks of record together, be used for final navigator fix and resolve the criterion that the process passage is chosen;
(3) will be designated as the satellite position that available passage follows the tracks of and make up, for certain two or the more satellites that the relative receiver angle of sight comparatively approaches, the geometric dilution of precision in judgement various combination situation changes;
The measured value of the passage that (4) will finally select carries out Kalman filtering, participates in navigator fix and resolves.
Concrete execution flow process is as shown in Figure 6:
Note, default thresholding mentioned in above-mentioned (1), (2) can be set according to different application conditions and situation, when as less in relative satellites in view number, can suitably reduce the thresholding of signal to noise ratio (S/N ratio), carrier-to-noise ratio, the pre-estimation measuring error is allowed in suitable raising; And when relative satellites in view quantity is more, raising signal to noise ratio (S/N ratio) that can be suitable, carrier-to-noise ratio thresholding, and reduce the allowable error thresholding.But simultaneously must the most basic fixing allowable value.
Contrast and the receiver of existing single navigational system adopt the reception technique of the interoperability receiver of above-mentioned proposition can guarantee that triangular web can work alone, and have simultaneously the ability of multisystem interoperability, as for change such as the table 1 on receiver cost:
Table 1 interoperability receiver cost changes
The part that the present invention does not elaborate belongs to techniques well known.
Claims (7)
1. the method for reseptance of an interoperability receiver, it is characterized in that, the method makes the interoperability receiver can be operated in that single satellite system independently receives and the compatible interoperability of a plurality of satellite system receives two kinds of duties, and simultaneously, what use is same set of hardware device, and when being operated in single satellite system independence accepting state, its function is equivalent to common receiver, signal process down coversion, mixing, the step of sampling, catch, following the tracks of are carried out at last navigator fix and are resolved; During at a plurality of satellite navigation system interoperability state, correspondingly be divided into following signal treatment step when operation of receiver: (a) real space satellite RF signal receives; (b) the radio frequency adjustment of signal; (c) carry out the first order and second level down-converted, obtain the intermediate-freuqncy signal that several satellite-signals mix; (d) adopt identical bandpass filter and controllable gain amplifier that intermediate-freuqncy signal is processed, the intermediate-freuqncy signal that remains a plurality of system signals mixing that obtains; (e) use same analog to digital converter to carry out digitized sampling to the intermediate-freuqncy signal of simulation, obtain the baseband digital signal that several system signals mix, send into software processing module; (f) navigational satellite system under the signal in judgement software treatment channel; (g) subchannel independent processing one road signal, carry out the operations such as acquisition and tracking; (h) select the measured value of effective passage, and carry out optimum combination, carry out navigator fix and resolve.
2. the method for reseptance of a kind of interoperability receiver as claimed in claim 1, it is characterized in that, described receiver is a kind of GNSS interoperability receiver, use single radio-frequency front-end to receive simultaneously the satellite-signal of a plurality of systems, wherein may comprise GPS, Galileo, GLONASS and dipper system.
3. the method for reseptance of a kind of interoperability receiver as claimed in claim 2, is characterized in that, described GNSS interoperability receiver adopts classification mixing strategy, comprises first order down coversion and second level down coversion; The local oscillator that uses in corresponding down coversion mixing has fixing output frequency, wherein: what select during the mixing of first order down coversion is the local carrier frequency of 1582.581MHz, and what select during the down coversion mixing of the second level is the local carrier frequency of 13.299MHz.
4. the method for reseptance of a kind of interoperability receiver as claimed in claim 2, is characterized in that, radiofrequency signal that described GNSS interoperability receiver receives is through after frequency conversion, and the signal of each system all is down-converted to intermediate-freuqncy signal below 10MHz.
5. the method for reseptance of a kind of interoperability receiver as claimed in claim 2, it is characterized in that, the mixing intermediate-freuqncy signal of described GNSS interoperability receiver is partly carried out base band signal process through together sending into software receiver after A/D converter, wherein, may comprise GPS, Galileo, GLONASS and dipper system signal in baseband signal.
6. the method for reseptance of a kind of interoperability receiver as claimed in claim 2, it is characterized in that, described GNSS interoperability receiver adopts same set of hardware device simultaneously the satellite-signal of each system to be received and processes, and wherein comprises at least GPS, Galileo, GLONASS and dipper system signal; Corresponding wave filter, the input-output characteristic of local oscillator is all fixed.
7. the method for reseptance of a kind of interoperability receiver as described in any one in claim 1 to 6, it is characterized in that, the software processing part of described GNSS interoperability receiver comprises the judgement to contained system in baseband signal, the combination of channel selecting and measuring value and utilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068157.3A CN103176196B (en) | 2013-03-04 | 2013-03-04 | A kind of method of reseptance of interoperation receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068157.3A CN103176196B (en) | 2013-03-04 | 2013-03-04 | A kind of method of reseptance of interoperation receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103176196A true CN103176196A (en) | 2013-06-26 |
| CN103176196B CN103176196B (en) | 2016-03-30 |
Family
ID=48636179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310068157.3A Active CN103176196B (en) | 2013-03-04 | 2013-03-04 | A kind of method of reseptance of interoperation receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103176196B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762996A (en) * | 2014-01-04 | 2014-04-30 | 南昌大学 | VHF-UHF software radio receiving system |
| CN105203860A (en) * | 2014-06-24 | 2015-12-30 | 特克特朗尼克公司 | Phase noise correction system for discrete time signal processing |
| CN108318033A (en) * | 2017-12-28 | 2018-07-24 | 和芯星通（上海）科技有限公司 | Pedestrian navigation method and system, electronic equipment and storage medium |
| CN108768424A (en) * | 2018-06-06 | 2018-11-06 | 武汉博畅通信设备有限责任公司 | A kind of New Anti-interference broadband receiver |
| CN110068843A (en) * | 2019-05-06 | 2019-07-30 | 北京六分科技有限公司 | Satellite positioning receiver, method and apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1943128A (en) * | 2004-02-24 | 2007-04-04 | 诺基亚公司 | A method and apparatus for receiving a signal |
| US7358896B2 (en) * | 2005-11-03 | 2008-04-15 | Nemerix Sa | Multiband GNSS receiver |
| WO2009142729A1 (en) * | 2008-05-20 | 2009-11-26 | Raytheon Company | Satellite receiver and method for navigation using merged satellite system signals |
| CN101777930A (en) * | 2008-12-04 | 2010-07-14 | 美国博通公司 | Communication method and system |
| CN101825695A (en) * | 2009-03-04 | 2010-09-08 | 重庆星熠导航设备有限公司 | Multi-module embedded combined navigation receiver and positioning method |
| CN101841341A (en) * | 2009-03-17 | 2010-09-22 | 张建城 | Big dipper multi-mode time service receiving device |
| CN201707440U (en) * | 2010-07-05 | 2011-01-12 | 西安展意信息科技有限公司 | High-dynamic GNSS multimode satellite navigation receiver integrated module device |
| CN102183771A (en) * | 2011-03-21 | 2011-09-14 | 华南理工大学 | Realizing method of multi-mode GNSS (Global Navigation Satellite System) software receiver based on multi-core processor |
-
2013
- 2013-03-04 CN CN201310068157.3A patent/CN103176196B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1943128A (en) * | 2004-02-24 | 2007-04-04 | 诺基亚公司 | A method and apparatus for receiving a signal |
| US7358896B2 (en) * | 2005-11-03 | 2008-04-15 | Nemerix Sa | Multiband GNSS receiver |
| WO2009142729A1 (en) * | 2008-05-20 | 2009-11-26 | Raytheon Company | Satellite receiver and method for navigation using merged satellite system signals |
| CN101777930A (en) * | 2008-12-04 | 2010-07-14 | 美国博通公司 | Communication method and system |
| CN101825695A (en) * | 2009-03-04 | 2010-09-08 | 重庆星熠导航设备有限公司 | Multi-module embedded combined navigation receiver and positioning method |
| CN101841341A (en) * | 2009-03-17 | 2010-09-22 | 张建城 | Big dipper multi-mode time service receiving device |
| CN201707440U (en) * | 2010-07-05 | 2011-01-12 | 西安展意信息科技有限公司 | High-dynamic GNSS multimode satellite navigation receiver integrated module device |
| CN102183771A (en) * | 2011-03-21 | 2011-09-14 | 华南理工大学 | Realizing method of multi-mode GNSS (Global Navigation Satellite System) software receiver based on multi-core processor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762996A (en) * | 2014-01-04 | 2014-04-30 | 南昌大学 | VHF-UHF software radio receiving system |
| CN105203860A (en) * | 2014-06-24 | 2015-12-30 | 特克特朗尼克公司 | Phase noise correction system for discrete time signal processing |
| CN105203860B (en) * | 2014-06-24 | 2020-11-10 | 特克特朗尼克公司 | Phase noise correction system for discrete time signal processing |
| CN108318033A (en) * | 2017-12-28 | 2018-07-24 | 和芯星通（上海）科技有限公司 | Pedestrian navigation method and system, electronic equipment and storage medium |
| CN108768424A (en) * | 2018-06-06 | 2018-11-06 | 武汉博畅通信设备有限责任公司 | A kind of New Anti-interference broadband receiver |
| CN110068843A (en) * | 2019-05-06 | 2019-07-30 | 北京六分科技有限公司 | Satellite positioning receiver, method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103176196B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104570022B (en) | A kind of compatible GNSS receiver of the multisystem based on DSP and its reception system | |
| CN102713674B (en) | Centimeter positioning using low cost single frequency GNSS receivers | |
| CN103728634B (en) | Double-antenna A-GNSS receiving machine system | |
| CN102183771B (en) | Realizing method of multi-mode GNSS (Global Navigation Satellite System) software receiver based on multi-core processor | |
| CN103176196B (en) | A kind of method of reseptance of interoperation receiver | |
| CN102809751A (en) | CAPS/Big Dipper bimodule receiver | |
| CN103713294B (en) | Whole frequency band GNSS receiver | |
| CN102540219A (en) | Receiving method and receiver for signal of global navigation satellite system | |
| CN102176037B (en) | Co-frequency multi-system navigation signal receiving and processing method | |
| TW201445168A (en) | A receiver and method for satellite positioning and speed measuring | |
| CN103954977A (en) | Method and system for sensing GNSS deception jamming | |
| CN101123440A (en) | Method of direct RF digitization for multiple gnss system bands and receiver using the same | |
| US11221415B2 (en) | Positioning device and positioning method | |
| CN104849729A (en) | Beidou satellite navigation anti-interference system | |
| CN102914783B (en) | Chinese area positioning system (CAPS)/global positioning system (GPS) dual-mode receiver | |
| CN104459735A (en) | Beidou-based high-precision differential service receiving device | |
| CN104765052A (en) | GEO navigation satellite high-sensitivity carrier tracking method | |
| CN103389500A (en) | Digital intermediate frequency signal generation device for satellite navigation system | |
| US20200278455A1 (en) | Gnss device with improved cross-correlation immunity | |
| EP1794611B8 (en) | Dual frequency reception of spread spectrum signals | |
| CN101782640B (en) | Satellite search method and receiver using the same | |
| CN112394374A (en) | Flexible device for synchronizing multi-antenna GNSS measurements | |
| CN210376695U (en) | Satellite positioning receiver, mobile device and global satellite navigation system | |
| CN112578412A (en) | Capturing method compatible with B1C signal and B2a signal | |
| CN114355402B (en) | Satellite-borne multidimensional GNSS-S radar system and ship target detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181102 Address after: 510080 A building 06, 602, room two, Bayi science and Technology Park, Yongping Friendship Road, Baiyun District, Guangzhou, Guangdong, China Patentee after: Guangzhou symphysis teaching equipment Co., Ltd Address before: 100191 Xueyuan Road, Haidian District, Beijing, No. 37 Patentee before: Beihang University |
|
| TR01 | Transfer of patent right |