Patent Details

Patent ID: CN200410044925.2

Mean corrected online SNR estimation method for Rayleigh Channel

Description: Mean corrected online SNR estimation method for Rayleigh channel is online SNR estimation method can be applied to mobile communication systems, mobile communication systems belonging to channel estimation technology.Characterized in that: the average Rayleigh fading becomes Rayleigh factor used instead of the actual fading factor, the relationship between the derived channel SNR statistic values ​​between the received data, the use of this relationship, the channel estimation value obtained SNR The present invention overcomes the shortcomings of the current online SNR estimation method can only be used for AWGN channel, the correction method proposed mean online SNR estimation can be used to Rayleigh fading channels, high accuracy, and the algorithm is relatively simple, easy-to-hardware implementation. For a frame length N of the signal, only (2N + 1) times adding operation, (N + 1) multiplication operations, 3 division operations.

Patent Details:

DOI: H04B17 / 00 (2006.01)