Method for processing millimeter wave cloud radar signal

A radar signal processing and millimeter wave technology, applied in the field of millimeter wave cloud radar signal processing, can solve problems such as insufficient detection capability of millimeter wave cloud radar

Active Publication Date: 2013-01-23
航天新气象科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a millimeter-wave cloud radar signal processing method t

Method used

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Embodiment Construction

[0045] A millimeter-wave cloud radar signal processing method, the specific steps are:

[0046] The first step is to build a millimeter wave cloud radar signal processing system and set up three detection modes

[0047] The millimeter wave cloud radar signal processing system includes: data acquisition module, data preprocessing module, data processing module and data synthesis module. The data acquisition module is used to collect the millimeter wave cloud radar echo signal; the data preprocessing module is used to perform data preprocessing on the millimeter wave cloud radar echo signal, and output the power spectral density distribution data; the data processing module is used to analyze the power spectral density distribution Perform data processing and output basic data; the data synthesis module is used to synthesize the basic data in the three detection modes and output the final basic data.

[0048] In order to adapt to different detection heights at low altitude and ...

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Abstract

The invention discloses a method for processing a millimeter wave cloud radar signal. Under a boundary layer mode, a cirrus cloud mode and a rainfall mode, the millimeter wave cloud radar echo signal is acquired by a data acquiring module; a data preprocessing module is used for preprocessing data of the millimeter wave cloud radar echo signal and outputting power spectral density distribution data; a data processing module is used for processing the power spectral density distribution data and outputting base data; a data synthesizing module is used for synthesizing the base data under three detection modes and outputting final base data; and the millimeter wave cloud radar signal is processed. According to the method, the problem of insufficient detection power caused by low millimeter wave cloud radar emission peak value power of an all-solid or travelling wave mechanism can be effectively solved, the radar detection power is improved, and the method is especially suitable for fixing a vertical millimeter wave cloud radar.

Description

technical field [0001] The invention relates to a radar signal processing method, in particular to a millimeter wave cloud radar signal processing method. Background technique [0002] At present, the signal processing method used by the millimeter-wave cloud radar is similar to that of the weather radar. The digital video integral processing (DVIP) is used to estimate the echo signal power, that is, the signal power value is obtained by the square of the complex modulus formed by I / Q. The impact of noise interference is averaged multiple times in azimuth and distance; under the assumption that the echo signal obeys the Gaussian distribution, pulse pair processing (PPP) is used to estimate the radial velocity and velocity spectral width. [0003] Although the digital video integral processing and pulse pair processing methods are simple and have a high data rate, they are not suitable for millimeter-wave cloud radars with low transmit peak power and fixed pointing, which can...

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Application Information

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IPC IPC(8): G01S7/41G01S13/95
CPCY02A90/10
Inventor 魏艳强张哲
Owner 航天新气象科技有限公司
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