Stanford的GPS实验室（ http://waas.stanford.edu/index.html ）破解了北斗系统的伪随机噪声（Pseudo Random Noise，PRN）码，其中一位关键的成员是来自清华大学的才女Grace Xingxin Gao，她的博士论文《Towards navigation based on 120 satellites analyzing the new signals》就是以PRN码的破解为主题的。她的主页： ht ...
2.2 Radar Constraints ELINT signals of interest include radar signals of all types. Sometimes, people concerned about ELINT attribute properties to radar signals that are contrary to the constraints under which radar systems must function. Avoiding this pitfall is an ...
1.9 The Impact of LPI Radar on ELINT 低截获概率雷达对 ELINT 的影响 Since ELINT has such value, a natural direction for radar design would be to reduce the ability of a would-be listener to receive the radar signal. Such radar systems are said to have low proba ...
1.8 Major ELINT Signal Parameters ELINT 信号的主要参数 The typical radar signal can be analyzed according to its power (Chapter 7), antenna (Chapters 8 and 10), and carrier modulation characteristics (Chapter 14). There are many receiver characteristics ...
1.7 Receivers for Radar Interception 用于截获雷达信号的接收机 The subject of intercept receivers is quite broad because there is no single design or type appropriate for all uses. Generally, intercept receivers can be divided into warning receivers and ELINT ...
1.6 Inferring Radar Capabilities from Observed Signal Parameters 从测量参数推断雷达性能 The basic function of ELINT is to determine the capabilities of the radar, so that decisions can be made as to what threat it poses. Radar functions are generally to make measu ...
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