CN202904021U - Beidou integrated circuit chip - Google Patents
Beidou integrated circuit chip Download PDFInfo
- Publication number
- CN202904021U CN202904021U CN 201220486622 CN201220486622U CN202904021U CN 202904021 U CN202904021 U CN 202904021U CN 201220486622 CN201220486622 CN 201220486622 CN 201220486622 U CN201220486622 U CN 201220486622U CN 202904021 U CN202904021 U CN 202904021U
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- CN
- China
- Prior art keywords
- chip
- signal
- integrated circuit
- radio frequency
- low noise
- 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.)
- Expired - Fee Related
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- Position Fixing By Use Of Radio Waves (AREA)
- Radio Relay Systems (AREA)
Abstract
The utility model relates to a Beidou integrated circuit chip mainly comprising important elements including a microprocessor, a low noise amplifier (LNA), a digital portion, a radio frequency portion, an antenna, an I/O driver, and microprocessor peripheral circuits; the chip is provided with Beidou RNSS and GPS baseband signal processing function, and signal original observed quantity can be outputted; and a standard serial communication interface is built in the chip, and the chip can be used for BD2 various receiving equipment.
Description
Technical field
The utility model relates to a kind of Big Dipper integrated circuit (IC) chip.
Background technology
Along with the development of space technology, the utilization of satellite navigation system is check of drawings day by day, and the progress of simultaneous computer hardware technology and mechanics of communication can propose better requirement to the information processing of navigation terminal; Declaring of this patent can be accelerated design of integrated circuit speed, be improved reliability, is conducive to promote the industrialization of China's satellite navigation, the miniaturization of subscriber equipment, has important theory value and practical significance.
Summary of the invention
For this problem, I have Big Dipper RNSS and GPS base band signal process function, the original observed quantity of exportable signal at the Big Dipper integrated circuit (IC) chip of company's research and development; Built-in standard serial communication interface can be applicable to many kinds of receiving equipments of BD2.
Technical solutions of the utility model are as follows:
A kind of Big Dipper integrated circuit (IC) chip mainly comprises microprocessor, low noise amplifier, digital part, radio frequency chip, antenna, import and export driver, and the several critical elements of microprocessor peripheral circuit; The function that the utility model is mainly realized is by finishing location and communication task under the support that is located at the dipper system central station outside configuring, having simultaneously the time service function concurrently; Module is sent the Big Dipper satellite signal of receiving into low noise amplifier by the receiving antenna of configuration and is amplified, and then sends into radio frequency chip and carries out down-converted and convert intermediate-freuqncy signal to, and integrated chip is sent in output after quantizing through A/D in the sheet again; Integrated chip carries out decrypted signal and formula out of frame to be processed, and the information that the user returns to the customer center station in accordance with regulations form forms inbound form, and forms outgoing data behind encryption, coding, spread spectrum; Transmit by after the power amplifier amplification, gone out by transmission antennas transmit; The application controls of integrated chip realizes by the external configuration of control interface.
The advantage that the utlity model has is as follows:
1. according to user's configuration, the simultaneously navigation information of reception ﹠ disposal BD2B3 frequency or GPS L1 frequency;
Acquisition and tracking function with BD2B3 frequency 1 branch road, B1 frequency 1 branch road, GPS L1 frequency 1 tributary signal has the Direct Acquisition following function of BD2B3, B1 frequency Q tributary signal.
2. parameters such as BD2/GPS satellite constellation, satellite numbering, frequency, acquisition and tracking pattern, the Doppler frequency region of search, precise distance measurement code phase, the region of search, detection threshold that arrange able to programme.
3. have 16 independently BD2B3, BD2B1 frequency/GPS L1 frequency tracking channels able to programme, after successfully capturing the appointment navigation signal, tracking channel can automatically be finished the tracking of navigation signal is processed, and comprising: (mainly comprising: time, pseudorange, carrier phase, carrier doppler etc.) extracted in the traction of carrier wave and pseudo-code and tracking, bit synchronous, frame synchronization, navigation message despread-and-demodulation, original observed quantity, carrier-to-noise ratio is estimated.
4. have by precision code chip (PRM) and obtain the precise distance measurement code function; Output function when having regularly signal second (1pps); Has worker C card serial line interface; Have standard UART interface and worker 2C.
5. has regularly second signal (1pps) markers output function.
Description of drawings
Fig. 1 is the structured flowchart of the utility model patent;
Fig. 2 is the circuit connection diagram of the utility model patent.
Embodiment
With reference to the accompanying drawings the utility model is described in detail:
The function that the utility model is mainly realized is by finishing location and communication task under the support that is located at the dipper system central station outside configuring, having simultaneously the time service function concurrently; Module is sent the Big Dipper satellite signal of receiving into low noise amplifier by the receiving antenna of configuration and is amplified, and then sends into radio frequency chip and carries out down-converted and convert intermediate-freuqncy signal to, and integrated chip is sent in output after quantizing through A/D in the sheet again; Integrated chip carries out decrypted signal and formula out of frame to be processed, and the information that the user returns to the customer center station in accordance with regulations form forms inbound form, and forms outgoing data behind encryption, coding, spread spectrum; Transmit by after the power amplifier amplification, gone out by transmission antennas transmit; The application controls of integrated chip realizes by the external configuration of control interface.
Claims (1)
1. a Big Dipper integrated circuit (IC) chip mainly comprises microprocessor, low noise amplifier, digital part, radio frequency chip, antenna, import and export driver, and the several critical elements of microprocessor peripheral circuit; It is characterized in that: module is sent the Big Dipper satellite signal of receiving into low noise amplifier by the receiving antenna of configuration and is amplified, and then sends into radio frequency chip and carries out down-converted and convert intermediate-freuqncy signal to, and integrated chip is sent in output after quantizing through A/D in the sheet again; Integrated chip carries out decrypted signal and formula out of frame to be processed, and the information that the user returns to the customer center station in accordance with regulations form forms inbound form, and forms outgoing data behind encryption, coding, spread spectrum; Transmit by after the power amplifier amplification, gone out by transmission antennas transmit; The application controls of integrated chip realizes by the external configuration of control interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486622 CN202904021U (en) | 2012-09-24 | 2012-09-24 | Beidou integrated circuit chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486622 CN202904021U (en) | 2012-09-24 | 2012-09-24 | Beidou integrated circuit chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202904021U true CN202904021U (en) | 2013-04-24 |
Family
ID=48124675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220486622 Expired - Fee Related CN202904021U (en) | 2012-09-24 | 2012-09-24 | Beidou integrated circuit chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202904021U (en) |
-
2012
- 2012-09-24 CN CN 201220486622 patent/CN202904021U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |