signature waveform meaning in English
特征波形
Examples
- Based on the uwb radar system , the emitting waveform design and signature waveform detection are discussed respectively in this paper to realize the detection and discrimination of targets
本文在超宽带雷达体制下分别从发射波形设计和特征波形检测两个角度来实现目标的检测和识别。 - But the frequent use of training sequence is certainly a waste of channel bandwidth . research shows that with the prior knowledge of only the signature waveform and timing of the user of interest , blind adaptive multiuser detector can effectively detect data symbol of the desired user without training data sequence for every active user
在传统多用户检测技术基础上，自适应多用户检测利用训练序列在仅知道期望用户地址pn码及其定时信息条件下就可以进行检测，不足的就是训练序列占用了额外的频率资源。 - Traditional multiuser detector make good use of all signals which resuilt in multiple access interference so that it provides optimum mai resistance . ( 1 ) nevertheless , it assumes that the receiver can acquire the signature waveform and timing of desired user and the interfering users ; ( 2 ) it has no ability to suppress intercell multiple access interference ; ( 3 ) it cannot be applied in downlink channels . adaptive multiuser detector eliminates the need to know the signature waveforms and the timing of the interferes and has to need training data sequences for every active user
传统多用户检测在单用户检测技术基础上，充分利用造成多址干扰的所有用户的信息进行联合检测，从而具有良好的抗多址干扰能力，但存在一些缺陷： ( 1 )不仅要求知道期望用户的地址pn码及其定时信息，还要求其他干扰用户的地址pn码及其定时信息； ( 2 )不能消除其他相邻小区的多址干扰对本小区的影响； ( 3 )不能直接应用在cdma移动通信系统中的下行链路。 - In waveform design aspect the impulse response elimination method is presented to detect and discriminate the targets . in the signature waveform detection aspect the target ' s late - time response is adopted as the signature waveform , then the adaptive beam formation arithmetic is used to detect this signature waveform
在发射波形设计中提出了冲击响应消去法，设计与目标匹配的发射波形来检测和识别目标；在特征波形检测中提出用目标冲击响应的晚期响应作为目标的特征波形，再利用自适应波束形成的算法来检测待测目标的特征波形。 - In this paper , a new interference - space - based blind adaptive mmse linear detector and the corresponding tracking algorithm based interference correlation matrix is proposed for mai in cdma wireless celluar communication system . analysis and simulation illustrate that the proposed blind multiuser detector has lower computational complexity , faster convergence and stronger robust with respect to imprecise knowledge of the received signature waveform of user of interest
围绕着cdma无线蜂窝移动通信系统中的多址干扰( mai )抵消问题，本论文在现有盲自适应多用户检测技术基础上，提出了一种新的基于干扰空间线性mmse盲自适应多用户检测器及其相应的基于干扰自相关矩阵c _ 1跟踪算法。