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Method and device produced by satellite simulating signal

A technology for satellite analog signal and generation method, applied in the field of satellite signal simulation, can solve the problems of complex structure, high cost and inability of hardware satellite signal simulator to achieve the effects of low cost, simple method and simple module structure

Active Publication Date: 2013-06-05
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current hardware satellite signal simulator has a complex structure and high cost; and it can only output radio frequency signals, which cannot meet the requirements of users who only need to use baseband signals or digital intermediate frequency signals

Method used

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  • Method and device produced by satellite simulating signal
  • Method and device produced by satellite simulating signal
  • Method and device produced by satellite simulating signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The embodiment of the present invention provides a method for generating satellite analog signals, such as figure 1 As shown, the method flow includes:

[0065] 101: Receive simulation parameters input by the user, and obtain navigation message parameters according to the simulation parameters;

[0066] 102: Obtain the baseband signal of the satellite analog signal according to the parameters of the navigation message; and modulate the baseband signal with an intermediate frequency carrier to obtain a digital intermediate frequency signal;

[0067] Among them, the simulation parameters include: simulation time, satellite navigation system, receiving carrier coordinates, receiving carrier motion state parameters, interference type, ionospheric or tropospheric delay.

[0068] In the embodiment of the present invention, by receiving the simulation parameters input by the user, the navigation message parameters are obtained according to the simulation parameters, the baseb...

Embodiment 2

[0070] The embodiment of the present invention provides a method for generating satellite analog signals, such as figure 2 As shown, the method flow includes:

[0071] 201: Receive the simulation parameters input by the user. The simulation parameters include: simulation time, satellite navigation system, receiving carrier coordinates, receiving carrier motion state parameters, interference type, ionospheric or tropospheric delay; generated and current simulation time according to the selected satellite navigation system Associated modeling data sources and satellite trajectory maps;

[0072] Specifically, the simulation parameters input by the user are received through the human interaction interface of the simulator software, and the simulator software is installed on a main control computer. Wherein, the satellite navigation system includes: the global satellite navigation system GPS, the Beidou satellite navigation system, and may also include the Galileo satellite navig...

Embodiment 3

[0093] An embodiment of the present invention provides a satellite analog signal generation device, such as image 3 As shown, the device structure includes:

[0094] The receiving module 301 is used to receive simulation parameters input by the user. The simulation parameters include: simulation time, satellite navigation system, receiving carrier coordinates, receiving carrier motion state parameters, interference type, ionospheric or tropospheric delay;

[0095] A generating module 302, configured to obtain navigation message parameters according to the simulation parameters received by the receiving module;

[0096] The first obtaining module 303 is used to obtain the baseband signal of the satellite analog signal according to the navigation message parameters generated by the generating module:

[0097] The baseband signal of the obtained satellite analog signal can be directly output to the receiver;

[0098] The second obtaining module 304 is configured to perform int...

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Abstract

The invention discloses a method and a device produced by a satellite simulating signal and belongs to the satellite signal simulation technical field. The method produced by the satellite simulating signal comprises the following steps: receiving simulation coefficients input by users, acquiring navigation message coefficients based on the simulation coefficient; acquiring baseband signals of the satellite simulating signals based on the navigation message coefficients; and starting medium frequency carrier wave modulation for the baseband signals, and acquiring digital medium frequency signals; wherein the simulation coefficients comprise a simulation time, a satellite navigation system, a carrier-receiving coordinate, carrier-receiving moving state coefficients, an interfering type, an ionized layer or a tropospheric delay. By receiving the simulation coefficients input by the users, the method and the device produced by the satellite simulating signal acquire the navigation message coefficients, and acquire the baseband signals of the satellite simulating signals based on the navigation message coefficients, and enable the baseband signals and the digital medium frequency signals to start the medium frequency carrier wave simulation and to acquire the digital medium frequency signals, so that the users can use the baseband signals, or the digital medium frequency signals based on requirements.

Description

technical field [0001] The invention relates to the technical field of satellite signal simulation, in particular to a method and device for generating a satellite simulation signal. Background technique [0002] In recent years, location-based services have played an increasingly important role in people's daily production and life, such as aircraft route guidance and approach and landing, car autonomous navigation, emergency lifesaving, personal travel and field exploration, personal communication terminals (with mobile phones, handheld computers, etc.) , electronic maps, etc.), ground vehicle tracking and urban intelligent traffic management, etc., the location services in the above scenarios need to be equipped with high-performance GNSS (Global Navigation Satellite System, global satellite navigation system) receivers on the carrier as an aid. The development process of a high-performance GNSS receiver needs to consider the dynamic factors of the carrier and the influe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/23
Inventor 邓中亮王冠一杨磊李晓敏尹露席岳詹中伟董慧
Owner BEIJING UNIV OF POSTS & TELECOMM
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