查询词典 receiver

A list sphere decoder based turbo receiver was introduced for groupwise STBC systems.

在分组空时块码系统中引入了基于软球形译码的Turbo接收机。

In order to achieve the detection of amplitude and phase of the optical signal at the same time,a new homodyne coherent detection system was designed,including the scheme of optical align design and the realization of receiver data processing.

陈楚，黄春晖福州大学物理与信息工程学院，福建福州 350002为实现光信号幅度与相位的同时检测，设计了一种新型的零差相干检测系统，包括光路实现方案的设计和接收端数据处理的实现。

The receivers have four common types of architectures: Heterodyne, Homodyne, Image-Reject and Digital-IF. Of course, the performance and the integrated extent vary with the variety of the receiver architectures.

当前常见的接收机前端结构有超外差、零中频、低中频和宽中频接收机等，接收机结构的变化和发展体现了其性能的改善和集成度的提高。

Linear combination technique for conventional Rake receiver is inadaptable to the nonlinear characteristics of wireless channel.

传统Rake接收机的线性合并技术不能适应无线信道的非线性特性。

Thus, in OFDM communication sytems, carrier frequency offset must be estimated and compensated at the receiver to minimize the effects of intercarrier interference and maintain orthogonality.

因此，在正交频分复用通信系统中，接收信号必须进行频率偏移估计和补偿来减小载波间干扰并维持子载波之间的正交性。

Due to the fact that the intercarrier spacing in OFDM is relatively small, OFDM transceivers are somewhat more sensitive to phase noise compared to single carrier transceivers. Thus this problem must be carefully considered in designing an OFDMbased system since an accurate prediction of the tolerable phase noise can allow designer to relax system specifications. According to spectrum theorem, two components of phase noise were analyzed: common phase error and intercarrier interference. On the basis of the analysis, the performance of OFDM was given for the case where phase noise has been added to the signal, and an optimal design criterion for OFDM parameters was proposed that allows to improve the phase noise error correcting capabilities in OFDM receiver.

由于采用子载波间相互正交的结构，OFDM系统对于由本地振荡器不稳定性所导致的相位噪声影响非常敏感，针对公共相位误差CPE和载波间干扰ICI两种影响表现形式不同的干扰项，从功率谱密度函数这一独特角度分析了相位噪声对OFDM系统性能的影响，提出了旨在提高接收机抵抗相位噪声能力的OFDM系统关键参数优化与设计准则，可在对所设计OFDM系统性能加以提高的同时，有效降低对接收机前端模拟振荡器件和相位噪声抑制单元的性能指标要求，从而降低接收机硬件实现成本。

At last,this paper analyzed the influence of the inversive receiver to the chracteristic of the clutter and the ratio of signal power and the noise power ,discussed the effective detection of target signal in correlated clutter,and then put forward a new method naming multi-periods shift accumulation for detecting moving target when not knowing the exact movement parameter.

最后，本文分析了倒置接收对目标回波信噪比及杂波特性的影响，讨论了在相关杂波区对回波信号有效检测的方法。针对如何在弹目相对运动参数未知的条件下对高速运动目标进行积累检测这一问题，提出了一种多周期移位积累的新方法。

For about$80 at any electronics supply store and som e tech nical know-how,it is possible to tap into London's CCTV hotspots w ith a sim ple w ireless receiver(sold w ith any hom e-security cam era)and a battery to pow er it.

到随便哪家电子商店花大约80美元，再具备一定技术知识，用一个简单的无线接收器(家用监控摄像头都带这个配件)和一块电池就可能接入伦敦的闭路电视热点。

The knurled knob at the rear of the receiver is the adjusting knob for the rear sight.

在接收后的滚花旋钮是调整对表尺旋钮。

Dynamic inheritance of rice allelopathy on the root length of receiver plant lettuce (Lactuca sativa L.) and its genotype×environment effects were analyzed by using additivedominant developmental genetic models.

采用包括基因型与环境互作的数量性状加性—显性发育遗传模型，分析了供试水稻对受体植物莴苣幼苗根长化感作用的动态遗传及与环境的互作效应。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。