Signal detection system and method for multi-channel filter

Abstract

The invention discloses a signal detection system for a multi-channel filter, and the signal input end of the detection system is connected with the signal output end of a to-be-filtered filter; the detection system comprises a server terminal, a PC operation end, a control switch module, a detection component and a frequency spectrograph, wherein the PC operation end and the control switch moduleare both connected to a network signal source, the signal output end of the control switch module is connected with the detection component, the PC operation end controls the detection component to be opened and closed through the control switch module, the PC operation end is in communication connection with the server terminal through a network, and the other signal output end of the PC operation end is connected to the frequency spectrograph; the invention further discloses a signal detection method for the multi-channel filter. The signal detection system is used for detecting all components in the filter; by adopting the system and the method disclosed in the technical scheme, the test efficiency is improved, the missed test and wrong test conditions are prevented, and the method issuitable for signal detection of various filters.

Description

technical field [0001] The invention belongs to the field of filters, and more specifically, the invention relates to a signal detection system and method for multi-channel filters. Background technique [0002] Cavity filters are widely used in aviation, aerospace, radar, communications, electronic countermeasures, radio and television and various electronic test equipment. With the rapid development of modern mobile communication technology, especially the rapid development of the new generation of communication base station systems, the cavity Demand for filters has skyrocketed, putting pressure on filter deliveries and product quality. Due to the increasing requirements for the size and types of filters, most cavity filters now adopt a multi-channel centralized structural design method, which requires high structural sealing to avoid signal leakage and poor electrical performance of the whole machine. Therefore, more and more attention is paid to the signal leakage of p...

AI Technical Summary

Problems solved by technology

[0003] In the past, the filter was tested for signal leakage. There was no systematic construction method. It used to connect a single signal source while maintaining the continuous output of the signal. One end of a single cable was connected to a channel connector of the filter. The accessories are moved randomly, the other end of the probe is connected to the spectrum analyzer, the value of the spectrum analyzer is manually checked, judged and manually recorded, and the same action needs to be repeated for each channel

This method has low efficiency and insufficient foolproofing. The signal cannot be automatically turned off during operation, which may easily lead to misjudgment. The signal received by the probe is affected by factors such as area and movement range, and the reliability is low. There are many subjective factors, and it is difficult for new employees to get started

At the same time, the stand-alone test cannot collect data uniformly, and the data needs to be manually summarized into the table in the future.

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