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Multi-channel amplitude and phase testing system signal reception processing method

An amplitude-phase measurement and system signal technology, applied in receiver monitoring and other directions, can solve the problems of cumbersome and repetitive measurement process, achieve high measurement accuracy, improve efficiency, and be beneficial to hardware implementation.

Inactive Publication Date: 2015-10-07
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Claims
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AI Technical Summary

Benefits of technology

This patented technology helps improve an electronics measuring device's ability to measure more accurately than possible with fewer beams simultaneously without sacrificing its performance or requiring expensive equipment like multi-axis scanning mirror systems that are used during measurements.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the accuracy and efficiency of testing electronic devices (such as radar) through an improved device called a phased arrays antenna or waveguide array. However, there may exist variations among individual units within the antennas themselves caused by factors like imperfections during manufacture or use over time. These differences lead to different levels of performance across all three dimensions - length, width, depth direction, etc., which affect how well signals from one part of the antennace enter another. To address this issue, various methods were developed to improve the detection capabilities of electronics' receivers and transmitters.

Method used

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  • Multi-channel amplitude and phase testing system signal reception processing method
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  • Multi-channel amplitude and phase testing system signal reception processing method

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Embodiment Construction

[0022] The present invention will be further illustrated and described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] figure 1 It is the flow chart of receiving signal processing of the whole multi-channel amplitude and phase test system. The input data is an intermediate frequency or radio frequency signal sampled by the ADC, and subsequent signal processing methods include digital down-conversion, polyphase filtering, decimation filtering, root-raised cosine filtering, digital matched filtering, and code capture.

[0024] Depend on figure 1 It can be seen that after the analog-to-digital conversion (ADC) sampling, the digital signal that enters the FPGA is serial-to-parallel converted, and it must first be digitally down-converted to the baseband and then filtered, and at the same time the sampling rate is reduced to m times the chip rate of the baseband signal (m Depending on the specific design, the typical value is 16, 32). Here...

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Abstract

The invention relates to a multi-channel amplitude and phase testing system signal reception processing method, and belongs to the technical field of communication system signal reception processing. In the method provided by the invention, a receiving terminal realizes amplitude and phase measurement for direct sequence-code division multiple access (DS-CDMA) signals through functions of serial-to-parallel conversion, multi-channel digital down conversion, multi-phase filtering, root raised cosine filtering, extraction, digital matched filtering and capturing and the like. The method provided by the invention improves the parallel processing efficiency of an electronic measurement system for multichannel beam signals, can achieve high measurement accuracy at the receiving terminal, and is conducive to hardware implementation.

Description

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Claims

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Application Information

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Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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