Title :
PN Sequence Assisted Noise Suppression in UWB-TR Communication System
Author :
Kang jie ; Yang Gang ; Shi Zhongke
Author_Institution :
Inst. of Air Traffic Manage., Northwestern Polytech Univ., Xi´an
Abstract :
In this paper, a novel pseudo-noise (PN) sequence assisted noise suppression scheme for ultra-wideband (UWB) transmitted reference (TR) system is presented by replacing the repetitive reference pulses with multiple short PN reference pulse sequences. The receiver uses them to estimate the channel impulse response and based on this to form an improved template which removes the parts mainly consist of noise and gives the multipath components that have better signal-to-noise ratio higher weights. The proposed system is described and its performance in a multipath channel is analyzed and simulated. The result shows that the proposed system has a better bit-error-ratio performance than that of an averaged TR system
Keywords :
channel estimation; error statistics; multipath channels; pseudonoise codes; transient response; ultra wideband communication; PN sequence; UWB-TR communication system; bit-error-ratio; channel impulse response estimation; multipath channel; noise suppression; pseudo-noise sequence; reference pulse sequences; signal-to-noise ratio; ultra-wideband transmitted reference system; Acoustic noise; Degradation; Energy capture; Multipath channels; Noise level; Performance analysis; Pulse modulation; Signal to noise ratio; Ultra wideband technology; Wireless sensor networks;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345900
