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Configurable reflection signal power processing system

A technology of reflected signal and processing system, applied in the field of correlators, which can solve the problems of low spatial resolution and single configuration of multi-channel dedicated correlators.

Inactive Publication Date: 2011-09-28
BEIHANG UNIV
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  • Description
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Problems solved by technology

[0005] In order to solve the defects of single configuration and low spatial resolution of multi-channel dedicated correlators, the present invention proposes a configurable reflection signal power processing system

Method used

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  • Configurable reflection signal power processing system
  • Configurable reflection signal power processing system
  • Configurable reflection signal power processing system

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] The present invention is mainly the application of digital means on the FPGA chip used on the existing multi-channel special correlator, that is, the Verilog HDL language is used for program editing on the FPGA chip to realize the configurable power processing of the reflected signal, thereby obtaining the reflected signal power value. The pickup of the power value of the reflected signal can provide reasonable data support for the subsequent inversion of the physical state, and provide technical reserves for spaceborne devices. The FPGA chip model is the EP2S672C5 chip of Statix2 of Atera Company.

[0031] Such as figure 1 As shown, the present invention is a configurable reflected signal power processing system, which consists of A / D quantization level decoding module 1, reflected signal carrier generation module 2, first multiplier 2A, second multip...

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Abstract

The present invention discloses a configurable reflection signal power processing system, and the system consists of an A / D quantization level decoding module, a reflection signal carrier generation module, a first multiplier, a second multiplier, a reflection signal multi-C / A code generation module, a chip delay control module and a power calculation module. In the invention, a reflection signal serially passes through a left-handed antenna, a dual-radio frequency front end and a high speed A / D sampler and then enters the configurable reflection signal power processing system, thereby being capable of realizing the aim that an upper computer can configure different output resolutions according to the inversion needs of different physical states, processing the reflection signals of different satellites in parallel, outputting real-time signal power with one-dimensional high time delay resolution, providing a reasonable data support for the follow-up inversion of the physical state and providing a technical reserve for a satellite carried device.

Description

technical field [0001] The present invention relates to a correlator, more particularly, refers to a configurable reflection signal power processing for the received reflection signal, so as to obtain the power value of the reflection signal. The configurable reflected signal power processing system of the present invention is applied in a delay mapping receiver. Background technique [0002] GNSS (Global Navigation Satellite System) technology has been widely used, and the reflection signals that affect the accuracy of navigation and positioning generally need to be suppressed or even eliminated, but it also has the characteristics of reflecting the properties of reflectors, and has become a feasible remote sensing technology in recent years. method and has received the attention of all countries. Its specific applications involve sea surface wind field inversion, ocean salinity measurement, sea surface elevation measurement, ground humidity distinction, terrain height war...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S1/04G01S5/02
Inventor 杨东凯王炎李伟强路勇
Owner BEIHANG UNIV
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