CN202815221U - Programmable and configurable multi-system interoperation satellite navigation receiver tracking channel - Google Patents
Programmable and configurable multi-system interoperation satellite navigation receiver tracking channel Download PDFInfo
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- CN202815221U CN202815221U CN201220437088.XU CN201220437088U CN202815221U CN 202815221 U CN202815221 U CN 202815221U CN 201220437088 U CN201220437088 U CN 201220437088U CN 202815221 U CN202815221 U CN 202815221U
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Abstract
The utility model discloses a programmable and configurable multi-system interoperation satellite navigation receiver tracking channel. The tracking channel is characterized by comprising configuration registers, a configurable digital carrier wave generator connected with the configuration registers, a configurable spreading-code digital frequency generator and a configurable spreading code generator, wherein the configuration registers are arranged between monitoring registers and a processor. According to the structure of the tracking channel, satellite navigation signals of different satellite navigation systems and of different modulation systems can be tracked, improving the flexibility and compatibility of the tracking channel; and the number of receiver tracking channels is effectively reduced with the performance indexes of the receivers guaranteed, thereby facilitating the realization of low power consumption and miniaturization of the receivers.
Description
Technical field
The utility model relates to the satellite navigation receiver tracking channel, is specifically related to a kind of configurable multisystem interoperability satellite navigation receiver tracking channel able to programme.
Background technology
The method that is based on hardware logic electric circuit that traditional satellite navigation receiver signal processing channel adopts, general using special IC (ASIC) is realized; As shown in Figure 1, I branch road and Q branch road adopt respectively three road C/A codes to generate leading (IE), instant (IP), (IL) signal lags behind, directly enter processor, this channel architecture can only be for single-frequency point and BPSK modulated satellite signals, its dirigibility and compatible very poor, satellite navigation signals that can not be compatible new or new global position system; Existing satellite navigation receiver must redesign critical component ASIC logic and just can address this problem.In today of satellite navigation and location system trend diversification (GPS, the Big Dipper, GALILEO and GLONASS etc.), the research satellite signal processing technology just must be placed on critical positions with the problem of multisystem compatibility.
Research finds that configurable design able to programme is an effective research and development direction that solves compatible multisystem Interoperability.In view of following the tracks of in key effect and status aspect the satellite navigation reception ﹠ disposal, configurable tracking channel design is a key point in the configurable satellite navigation signals treatment technology.
In order to solve above-mentioned deficiency of the prior art, the utility model provides a kind of new solution.
The utility model content
The purpose of this utility model is: for the deficiency of existing satellite navigation receiver tracking channel design, a kind of configurable multisystem interoperability satellite navigation receiver tracking channel able to programme is proposed, so that adopt unified tracking channel structure just can realize the satellite navigation signals of the different modulating system of different satellite navigation systems is followed the tracks of; Improve dirigibility and the compatibility of this tracking channel.
To achieve the above object of the invention, the technical scheme that the utility model adopts is: provide a kind of configurable multisystem interoperability satellite navigation receiver tracking channel able to programme, the control register that comprise the track loop structure, is connected with the output terminal of track loop structure and the processor that is connected with the output terminal of control register;
It is characterized in that: also comprise configuration register and be connected the configurable digital carrier generator that is connected with configuration register, configurable spreading code numerical frequency generator and configurable spreading code generator; Described configuration register is arranged between control register and the processor;
Described track loop structure is configurable track loop structure, comprises FPGA; Described FPGA comprise produce leading, instant, lag behind, far away in advance be connected the totalizer that the configurable spreading code generator of five road signals is connected with output terminal with configurable spreading code generator that lags behind; The output terminal of described totalizer is connected with control register.
Described processor is flush bonding processor.
In sum, the able to programme configurable multisystem interoperability satellite navigation receiver tracking channel that provides of the utility model has following beneficial effect:
1) tracking channel of the present utility model is by arranging configuration register and the configurable digital carrier generator that is connected with configuration register, configurable spreading code numerical frequency generator and configurable spreading code generator, can be according to the feature flexible configuration carrier frequency of satellite positioning signal, spread-spectrum code rate, every satellite positioning signal parameter such as spread spectrum code sequence, flexible configuration track loop structure, possess the satellite navigation signals of multisystem is followed the tracks of, the ability of text solution mediation pseudo range measurement, can realize the satellite navigation signals of the different modulating system of different satellite navigation systems is followed the tracks of, improve dirigibility and the compatibility of this tracking channel;
2) adopt tracking channel of the present utility model under the prerequisite that guarantees the receiver performance index, effectively to reduce the quantity of receiver tracking passage, be easier to realize low-power consumption and the miniaturization of receiver.
Description of drawings
The structural drawing of traditional satellite navigation receiver tracking channel that Fig. 1 provides for the utility model embodiment.
The structural drawing of the able to programme configurable multisystem interoperability satellite navigation receiver tracking channel that Fig. 2 provides for the utility model embodiment.
The structural representation of the track loop structure that Fig. 3 provides for the utility model embodiment.
The synoptic diagram that communicates by register between the track loop structure that Fig. 4 provides for the utility model embodiment and the flush bonding processor.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done and to be described in detail:
As shown in Figures 2 and 3, the able to programme configurable multisystem interoperability satellite navigation receiver tracking channel that the utility model provides comprises track loop structure, the control register that is connected with the output terminal of track loop structure, the configuration register that is connected with control register and the flush bonding processor that is connected with configuration register, also comprises the configurable digital carrier generator that is connected with configuration register, configurable spreading code numerical frequency generator and configurable spreading code generator; Wherein, configurable digital carrier generator can produce different carrier frequency and realize that carrier wave peels off; Configurable spreading code numerical frequency generator produces different bit rates; Configurable spreading code generator can produce dissimilar spreading code realization codes and peel off.
Wherein, the track loop structure is configurable track loop structure, comprises FPGA; FPGA comprises the totalizer that configurable spreading code generator is connected with the output terminal of configurable spreading code generator; This configurable spreading code generator is except leading (IE and QE), instant (IP and the QP) that can produce traditional spreading code generator and can produce, (IL and QL) three road signals that lag behind, can also produce leading (IVE and QVE) far away and (IVL and the QVL) two paths of signals that lags behind far away, leading (IVE and QVE) far away and (IVL and the QVL) two paths of signals that lags behind far away can adapt to new satellite-signal BOC modulation system, so that the track loop structure can adapt to the satellite-signal of different modulating system (such as BPSK and BOC etc.); FPGA also comprises shift register, is connected with configurable spreading code generator, is used for realizing as required the conversion of the output of three road signals of track loop structure and five road signals.
During use, control register detects the state of institute's tracking signal, and configuration register is adjusted the internal information of track loop structure, configurable digital carrier generator, configurable spreading code numerical frequency generator and configurable spreading code generator according to the state of control register; Configurable digital carrier generator all can have different centre frequencies to adapt to the driving clock of different frequency with configurable spreading code numerical frequency generator, and configurable spreading code generator is exportable dissimilar spreading code such as the C/A code of gps signal, the C/A code of GLONASSLI signal and the spreading code of BD II signal etc. then.What detect that satellite-signal adopts when control register is the BPSK modulation system, and then the track loop structure is used three road signals (IE, IP and IL) and (QE, QP and QL), and signal is transferred to flush bonding processor realization demodulation; When the satellite-signal that detects adopt be new BOC modulation system the time, then the track loop structure is used five road signals (IVE, IE, IP, IL and IVL) and (QE, QP, QL, QVE and QVL), and signal is transferred to flush bonding processor realization demodulation.
The configurability of satellite navigation signals tracking channel of the present utility model is by carrying out reconfigurable the realization to various running parameters, in configurable satellite navigation signals tracking channel, track loop structure and critical component such as configurable digital carrier generator, configurable spreading code numerical frequency generator and configurable spreading code generator all can be by reconfiguring to adapt to different demands; The utility model is compared with traditional satellite navigation signals tracking channel: increased again configuration register on the basis of original control register file, configuration register carries out reconfiguring of relevant parameter according to the satellite-signal that control register detects to track loop structure, configurable digital carrier generator, configurable spreading code numerical frequency generator and configurable spreading code generator, with the accurate tracking of realization to the satellite navigation signals of the different modulating system of different satellite navigation systems.
Configurable tracking channel of the present utility model in short, in fact comprise two kinds of parts: a kind ofly can share multiplexing parts when being signal trace to various constellations, different modulating system, such as frequency mixer, wave filter be arranged on totalizer among the FPGA and shift register etc.; Another kind is need to dispose the parts that corresponding parameter realizes corresponding function by configuration register during to the signal trace of different modulating system, such as configurable digital carrier generator, configurable spreading code numerical frequency generator and configurable spreading code generator etc.When receiver need to switch between dissimilar satellite navigation signals, the parts that only need the change configuration register to select to be complementary with the satellite navigation signals that will follow the tracks of got final product.
In addition, Fig. 4 has provided the synoptic diagram that communicates by register between track loop structure and the flush bonding processor.Read-write operation between control register of the present utility model and the configuration register is obtained by the interrupt operation between track loop structure and the flush bonding processor; Not only comprise configuration read/write register and monitoring read/write register, also comprise integrated value read/write register, system control register and status register.
The utility model is not limited to above-mentioned example, in claims limited range of the present utility model, and various distortion that those skilled in the art can make without creative work or revise the protection that all is subjected to this patent.
Claims (2)
1. configurable multisystem interoperability satellite navigation receiver tracking channel able to programme, the control register that comprise the track loop structure, is connected with the output terminal of track loop structure and the processor that is connected with the output terminal of control register;
It is characterized in that: also comprise configuration register and be connected the configurable digital carrier generator that is connected with configuration register, configurable spreading code numerical frequency generator and configurable spreading code generator; Described configuration register is arranged between control register and the processor;
Described track loop structure is configurable track loop structure, comprises FPGA; Described FPGA comprise produce leading, instant, lag behind, far away in advance be connected the totalizer that the configurable spreading code generator of five road signals is connected with output terminal with configurable spreading code generator that lags behind; The output terminal of described totalizer is connected with control register.
2. configurable multisystem interoperability satellite navigation receiver tracking channel able to programme according to claim 1, it is characterized in that: described processor is flush bonding processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220437088.XU CN202815221U (en) | 2012-08-30 | 2012-08-30 | Programmable and configurable multi-system interoperation satellite navigation receiver tracking channel |
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| CN201220437088.XU CN202815221U (en) | 2012-08-30 | 2012-08-30 | Programmable and configurable multi-system interoperation satellite navigation receiver tracking channel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792557A (en) * | 2014-01-27 | 2014-05-14 | 北京邮电大学 | Method and device for tracking satellite signals |
| CN106842255A (en) * | 2015-12-04 | 2017-06-13 | 北京自动化控制设备研究所 | A kind of configurable multisystem satellite navigation method of reseptance |
| CN108111216A (en) * | 2017-12-11 | 2018-06-01 | 北京无线电计量测试研究所 | A kind of tracks of device for New System satellite two-way equivalent bandwidth composite signal |
| CN110196435A (en) * | 2018-02-27 | 2019-09-03 | 中国科学院微电子研究所 | Processing method, device, storage medium and the processor of signal |
-
2012
- 2012-08-30 CN CN201220437088.XU patent/CN202815221U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792557A (en) * | 2014-01-27 | 2014-05-14 | 北京邮电大学 | Method and device for tracking satellite signals |
| CN106842255A (en) * | 2015-12-04 | 2017-06-13 | 北京自动化控制设备研究所 | A kind of configurable multisystem satellite navigation method of reseptance |
| CN108111216A (en) * | 2017-12-11 | 2018-06-01 | 北京无线电计量测试研究所 | A kind of tracks of device for New System satellite two-way equivalent bandwidth composite signal |
| CN110196435A (en) * | 2018-02-27 | 2019-09-03 | 中国科学院微电子研究所 | Processing method, device, storage medium and the processor of signal |
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Granted publication date: 20130320 |