Abstract：A novel communication receiver which uses lapped transform (LT) incorporating modified median filter (MMF) algorithm is designed for narrow-band interference excision.The LT domain MMF algorithm takes full advantages of the direct sequence spread spectrum signal,as well as the characteristics of LT,performing the transform domain filtering twice.The first filtering locates the position of interference and mitigates most of them.The second filtering is performed in a small neighborhood of the located interference.So LT domain MMF algorithm can completely mitigate the interference without distorting the desired signal.Simulation results demonstrate the improved BER performance and increased robustness of our receiver.
李冲泥;胡光锐. 一种新的重叠变换域抗窄带干扰技术[J]. 电子学报, 2000, 28(1): 117-119.
LI Chong-ni;HU Guang-rui. A New Lapped Transform Domain Narrow-band Interference Excision Technique. Chinese Journal of Electronics, 2000, 28(1): 117-119.