Title :
Joint synchronization and data detection digital receiver for direct sequence spread spectrum systems
Author :
Cheng, Tai-Yuan ; Chen, Kwang-Cheng
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
A digital joint estimator for carrier phase, code timing, and data sequence of spread spectrum communication system is proposed. The proposed scheme is derived from the maximum likelihood estimation (MLE) theorem and is an extension of the sample-correlate-choose-largest (SCCL) algorithm. The scheme is a two-dimensional SCCL algorithm which estimates both the carrier phase and code timing recursively. Both the simulations and analytical results are presented and we show that the scheme is effective in additive Gaussian noise channel
Keywords :
Gaussian channels; cellular radio; correlation methods; digital radio; land mobile radio; maximum likelihood estimation; personal communication networks; phase estimation; pseudonoise codes; radio receivers; signal detection; signal sampling; spread spectrum communication; synchronisation; timing; 2D SCCL algorithm; MLE theorem; PCS; additive Gaussian noise channel; carrier phase estimator; cellular phone systems; code timing estimator; data detection digital receiver; data sequence estimator; digital joint estimator; direct sequence spread spectrum systems; joint synchronization; maximum likelihood estimation; personal communications services; sample-correlate-choose-largest algorithm; simulations; spread spectrum communication system; Additive noise; Analytical models; Frequency synchronization; Gaussian noise; Maximum likelihood estimation; Phase estimation; Recursive estimation; Spread spectrum communication; Timing; Tracking loops;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.605975
