This invention relates to a channelization-based method for measuring the bandwidth of cross-channel
broadband signals. The method includes the following steps: grouping the channels of a
channelized digital receiving
system; determining whether the
signal frequency is within the channel bandwidth range by judging the range of the sub-channel
phase difference, thereby obtaining
effective frequency measurement enable and effective detection pulses; calculating the
signal frequency based on the sub-channel
signal phase difference; selecting effective signal frequencies based on the sub-channel frequency measurement enable; measuring the bandwidth of the sub-channel signals; performing time-domain overlapping signal detection and
processing; generating an effective
channel identifier matrix for each signal; and summing the effective bandwidth measurements of the channels containing the signal based on the effective
channel identifier matrix to obtain the signal bandwidth. In summary, this invention has the advantages of good
broadband signal
bandwidth measurement performance, wide application range,
low resource consumption, high real-time performance, and is very suitable for systems that are sensitive to resource usage and have high real-time requirements.