Transform domain quadratic estimation method based on combination of time domain clustering denoising with equalization decision making

摘要: The invention discloses a transform domain quadratic estimation method based on combination of time clustering denoising with equalization decision making. A harmonic sequence is designed at atransmitting terminal and weighted overlapping carried out the training to generate transmitting sequence; an SVD channel existing overlapped sequence, rough frequency response obtained; threshold set impulse responses are classified into initial signal class sample noise sample, processing completed; denoised by using windowed DCT/IDCT interpolation, wherein making introduced process. According disclosed invention, influences performance data eliminated isimproved; noises can be effectively; implementation complexity low. applied in multi-carrier communication well.