公开(公告)号：US20110134981A1

公开(公告)日：2011-06-09

申请号：US13056699

申请日：2010-05-24

申请人： Lee M. Garth ,  Gary R. Lomp ,  Matthew J, Sherman

发明人： Lee M. Garth ,  Gary R. Lomp ,  Matthew J, Sherman

IPC分类号： H04B17/00

CPC分类号： H04L25/03006

摘要： A desired signal modulated with N symbols is detected in the presence of a constant modulus (CM) interferer that produces M symbols. Observation samples corresponding to the desired signal and the interferer are obtained from a signal recovery stage. N observation constellations are defined, each having M constellation points corresponding to the symbols produced by the interferer, and the points form a circular perimeter of the constellation with a radius corresponding to the strength of the interferer. The perimeter of each constellation is centered on one of N defined symbol points representing the different possible symbols of the desired signal. Distances between the observation samples and the circular perimeter of each observation constellation are determined. For each observation sample, the symbol point on which the constellation perimeter closest to the sample is centered, is selected as a symbol of the desired signal.

摘要翻译： 在存在产生M个符号的恒定模量（CM）干扰源的情况下，检测用N个符号调制的期望信号。 从信号恢复阶段获得与期望信号和干扰源对应的观测样本。 定义N个观测星座，每个观测星座具有对应于由干扰源产生的符号的M个星座点，并且该点形成具有对应于干扰源的强度的半径的星座的圆形周长。 每个星座的周长以表示所需信号的不同可能符号的N个定义的符号点之一为中心。 确定观察样本与每个观察星座的圆周长之间的距离。 对于每个观察样本，最接近采样的星座周长的符号点居中，被选为所需信号的符号。