Research On Blind Channel Quality Estimation Algorithm Based On CPM

Blind Channel Quality EstimationAlgorithm Based on CPM is a satisfied choice of improving the frequency-hopping (FH) communications correspondence function and exaltating correspondence quality. How aim at a characteristics of FH communications system work environment, design the method can be accurate and realtime estimate channel has become one hot spot of FH communications research.For the great characteristics of CPM and its application in FH system, this paper focuses on the blind channel estimation of CPM in FH system. the general methods of the estimation of the channel quality are simply introduced. the blind channel quality estimation algorithm is given.This algorithm uses the signal characteristic which are contained in the power spectral density by the Fourier transformation to estimate the channel quality blindly. And algorithm is simulated by MATLAB. The result shows that the algorithm has the characteristics such as the high accuracy, faster calculation, few data required. It matches the requirement of real-time channel detecting.