A robust blind symbol rate estimation algorithm in multi-path fading channels
LI Dong-w · Journal of Northwest University · 2014
Due to the effect of multi-path fading channels,inter-symbol interference will be generated in the receipt signal,and this will lead to the inefficiency of delay-multiply which can be used to estimate the symbol rate. Aiming at this problem,this paper presents a robust blind symbol rate estimation algorithm in the multipath fading channels. The received signal is firstly processed by blind equalization using modified constant modulus algorithm to remove the inter-symbol interference,and then the symbol rate can be obtained successfully by delay-multiply approach. The new scheme rarely depends on any channel state information,so it shows an excellent efficiency in the signal detection domain. Computer simulations show that the new algorithm can effectively eliminate inter-symbol interference,has greatly improved the detection success rate of the symbol rate,and it is dramatically robust as well.