Signal detection system and method for multi-channel filter

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 ado