A FFT-based partial matched filter (PMF) acquisition threshold setting method for fast GPS acquisition is presented. Normal distribution and numerical fitting technique instead of real decision variable (DV) distribution are used in derivatio

2014 年2 月，DVB 组织通过了最新的DVB-S2 扩展版技术规范DVB-S2X。DVB-S2X 作为第二代卫星广播电 视标准DVB-S2 的扩展，能够进一步提高带宽利用率，并为未来可能出现的移动应用提供了甚低信噪比(VL-SNR) 模式。 本文重点介绍和分析了DVB-S2X 几项新的技术改进。-In February 2014, DVB Organization adopted new DVB-S2 specification extended edition DVB-S2X.