jtids meaning in Chinese
联合战术情报发布系统
联合战术情报分发系统
联合战术信息分布系统
Examples
- Jtids - joint tactical information distribution system
联合战术信息发布系统 - Research on characteristics and jamming methods of jtids
的空间信息处理平台抗辐射关键技术研究 - The signal format of gps is analyzed , the principle models and mathematical models are established , the ber performance is analyzed in a channel interfered with wide - bandwidth awgn , narrow - bandwidth awgn , transmitted signal , single - tone signal respectively . based on the results above interference methods are discussed and simulated . then the performance of code acquisition and code trace of a digital gps receiver are discussed . the modem of linkl 1 and link4a are modeled and their ber performances are analyzed and simulated in channel s interfered with awgn , single - tone signal and multi - tone signal respectively
建立了jtids的收发终端的数学模型，分析它在噪声干扰、相关干扰、互相关干扰下的误码性能，提出较佳的干扰方法和干扰码型，并进行仿真模拟；分析了gps的信号格式，建立了gps的原理框图模型、信号数学模型，并对其在宽带噪声干扰、窄带噪声干扰、转发干扰、单频干扰等情形下的误码性能进行了分析比较，提出相对较佳的干扰方法，并做了计算机模拟，针对一数字式gps接收机中扩频码捕获与跟踪环的特性进行分析；建立了link11和link4a数据链调制解调数学模型，对它们在噪声干扰、单音干扰、多音干扰等下的误码性能进行分析，最后对干扰情况进行了仿真模拟。 - The emitter location methods commonly include : angle of arrival ( aoa ) measurement , time - difference - of - arrival ( tdoa ) measurement and aoa together with tdoa measurement . this paper derive some important techniques and theories bearing upon passive location in this field . three kinds of passive location algorithm in three - dimensional ( 3 - d ) space are deduced based on that of 2 - d space . at the same time each performance is analyzed , each graph of geometric dilution of precession ( gdop ) is emulated for different station position , different measurement error , and different target height . accordingly some valuable academic and emulational results are obtained by myself , which will provide researches in this field with definite technical refrence . at the end of this paper , the passive location method of jtids ( joint tactical distribution systems ) is discussed , which is expected to enforce the tactical performance of jtids in the intending development
本文汲取了该领域有关被动定位的重要技术和理论，在二维平面无源定位算法的基础上推导出了三维空间内的三种无源定位算法，并对各自的定位性能进行了理论分析和计算机仿真，模拟出不同的布站、不同的测量误差以及不同辐射源高度的情况下，三种定位方法各自对应的定位精度（ gdop ）分布图，同时对各自的定位性能进行了改进处理，得出了一些有价值的理论和仿真实验结果，这些结论可为今后在此领域的研究提供一定的技术参考。