Detection Technique for Direct-Sequence Spread-Spectrum Parallel Acquisition in a Nonselective Rician Fading Channel
Young‐Hwan You, Sung-Jin Kang, Panyuh Joo, Changeon Kang · HKIE Transactions · 1998
This paper presents a statistical analysis of the decision threshold for direct-sequence spread-spectrum (DS-SS) parallel Pseuda-Naise (PN) cade acquisitian with a reference filter. The probabilities of detectian and false alarm are derived, and the mean acquisitian time is evaluated as a measure of the system performance in both nonfading and Rician fading channels. Fram the statistical results, it is shown that in the performance analysis of the parallel acquisition system with reference filtering, the statistical evaluatian of the decision threshold seems more appropriate than the approximation of the decision threshold adopted in other schemes [4,5]. It is also shown that the parallel acquisition scheme provides a suboptimal threshold value for a wide range of SNR such that the mean acquisition time is minimized.