Indoor intrusion detection method based on CSI signal sparse representation
A signal sparse, intrusion detection technology, applied in electrical alarms, instruments, anti-theft alarms, etc., can solve the problems of high cost, human intervention, large amount of calculation, etc., to reduce workload and avoid offline training process , to solve the effect of the decrease in recognition accuracy
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[0042] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0043] In this embodiment, an indoor intrusion detection method based on sparse representation of CSI signals, such as figure 1 , 2 shown, including the following steps:
[0044] Step 1: Arrange one transmitting antenna and M receiving antenna arrays distributed at equal intervals in an indoor environment, set a time window of size T to record T snapshot CSI data on the M antenna arrays, and record continuously t windows;
[0045] The CSI data recorded in the tth time window of size T is a T×M dimensional CSI matrix Among them, CSI t is the CSI data of T snapshots in the tth time window, H g is the single snapshot CSI data of the gth time, g=1, 2,..., T, h TM Take ...
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