An improved channel estimation algorithm of TD-SCDMA system

作者：Hou Jie^*; Tang Liangrui

来源：2010 5th International Conference on Critical Infrastructure, CRIS 2010, 2010-09-20 to 2010-09-22.

DOI：10.1109/CRIS.2010.5617566

• B.Steiner algorithm
• Background noise
• Channel estimation algorithms
• Channel impulse
• CIR
• Estimation algorithm
• Extra computations
• Gate processing
• Simulation result
• TD-SCDMA
• TD-SCDMA systems

B.Steiner channel estimation algorithm is generally adopted in TD-SCDMA system. However, because of the impact of background noise, there are some errors between the estimated channel impulses responses (CIRs) and the real ones in terms of amplitude and time-delay, leading to the system performance decreases. This paper proposed a gate method which processes the result of the B.Steiner estimation algorithm and thus decreases noises. The simulation results show that the improved CIRs are closer to the ideal ones and the system performance is effectively increased. Besides, this method is easily to be realized without adding any extra computations of system.

• 出版日期2010
• 单位华北电力大学