Single channel interference and signal blind separation method based on mutation particle swarm particle filtering
A mutated particle swarm and particle filter technology, applied in baseband system components, shaping networks in transmitters/receivers, etc., can solve the problems of noise sensitivity, poor signal separation, and unsatisfactory separation effects.
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[0077] The specific implementation process of the present invention will be described in detail below, and an example will be given in conjunction with the separation of single-tone interference.
[0078] Step 1: down-convert the disturbed communication signal received by a single channel into a baseband signal and perform digital sampling;
[0079] Step 2: Generate an initial set of particles N is the number of particles;
[0080] Step 3: Calculate the likelihood distribution of the current particle set according to formula (10) (11)
[0081] Step 4: Update the weights corresponding to the particles according to formula (12) Normalized and update the particle collection χ k = { x k i , w k i } i ...
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