Signal Detection of the Onshore Radio Navigation Receiver in Colored Noise

A method of signal detection is presented which introduces the direct sequence frequency spreading technique in colored noise.An observation autocorrelation based algorithm is suggested to estimate the variance parameter of the measurement noise by using a single layer neural network.The recursion formulas,the autocorrelation predictive functional expression and the flow chart are given.The simulation results show that the method of signal detection is able to approximate the colored noise in low complexity and has good performance.