Implementing method for anti-interference technology of satellite communication based on single-time sampling

The present invention relates to a number sampling basing on the single-time frequency spreading code speed and the correlative disturbance suppression and the signal tracking arithmetic. The data rate which needs be done with anti-interference is reduced to identical to the speed of the frequency spreading code with the number sampling of the single-time frequency spreading code speed, then doing frequency domain trapping using the frequency anti-interference arithmetic. The Hamming window is adapted in the time domain and the data overlap processing is adopted to reduce the effect of the time domain cutback. In the aspect of disturbance analyzing the data is divided to block and is done with selective analyzing to reduce the calculating amount and avid the calculation doubling caused bythe data overlap processing. The circulating iteration is adapted in the threshold estimating for the signal character effect which is caused by that the time varying interference acts on the analog front end. When the anti-interference is finished the time domain time-delay wave filter is adopted in order to do tracing of the frequency spreading signal, and the anti-interference data with a double frequency spreading code speed is obtained to do tracing of the frequency spreading code.