Study on Windowing Degradation of Frequency Domain Narrowband Interference Suppression Algorithms in Spread Spectrum System
扩频系统频域窄带干扰抑制算法加窗损耗研究

In spread spectrum system, frequency-domain interference suppression algorithms always use data windows to reduce the spectral leakage associated with truncation, and employ overlap to lessen the SNR degradation due to windowing. In this paper, the windowing degradation and the data composing are studied. An improved method has been put forward to compose the data after overlap based on Capozza's(2000) method. The analyzed and simulated results show that the new method leads to a less SNR degradation than Capozza's method at the cost of a few more addition.