信号干扰比

文中首先给出了CDMA系统中的多用户信号模型，然后具体介绍了3种多用户检测器，并分析了它们的信号干扰比和比特误码率。

The multi-user signal model in CDMA system is presented and three kinds of multi-user detectors are introduced in detail , then their SIR and BER are analyzed .

基于信号干扰比（SIR）测量的归一化功率控制在无线蜂窝系统中有着广泛的应用。

Unitary power control based on Signal-to-Interference Ratio ( SIR ) measurement has been widely used in cellular radio system .

在蜂窝无线通信系统设计中，基于信号干扰比（SIR）测量的功率控制方法得到广泛的应用。

In the design of cellular radio systems , power control methods based on signal-to-interference ratio ( SIR ) measurement have been used widely .

在传输功率的计算上，引入了相对于LEACH的无线电通信模型，更具实用意义的信号干扰比模型。

Compared with the radio communication model in LEACH , a more practical SINR based model is in use for computing transmission power .

仿真结果表明，该算法相对传统算法可以获得更高的信号干扰比（SINR）。

Simulation result shows that signal-to-interference and noise ratio ( SINR ) of the proposed algorithm is better than that of the traditional algorithm .

通过分析信号干扰比的变化，比较两种算法的跟踪性能。

It also compares the performance of two tracking algorithms against the variation of signal-to-interference ratio ( SIR ) .

自适应阵列天线在近年来被称为智能天线，它能够显著提高系统的信号干扰噪声比（SINR），能够减小时延扩展及多径衰落，实现空分多址。

The smart antenna is able to improve SINR significantly and reduce time delay spread and multipath fading at the same time .

从极化的椭圆参数与极化球的Stokes参数的关系出发，直接推导出干扰环境下极化球面上的优化接收信号干扰噪声比参量表示式。

An equation for the signal to interference plus noise power ratio about optimal reception on the polarization sphere in interference environment is derived directly based on the relationship between ellipse parameters and Stokes parameters .

本文针对极化测量过程中干扰和噪声对接收效果的影响，提出一种极化轨道约束下的变极化接收方法，以改卷接收系统的SINR（信号干扰噪声比）。

In this paper , a polarimetric method with the constraint of polarization track is presented to improve SINR ( Signal-to-Interference-and-Noise-Ratio ), while considering the effect of interference and thermal noise on the reception of antenna .

首先采用有限干扰模型代替简单的双状态干扰模型，以信号-干扰比代替拥塞系数Q，再以传输DM1包为例比较采用自适应跳频技术前后的系统误码率。

We first adopt an interference-limited model and signal interference ratio ( BER ) instead of the simple two-state model and congestion Q , and then we compare the BER performance of the Bluetooth that uses AFH with that of the Bluetooth without it .

同时得到了正交波束成形空分多址系统中下行信号-干扰比的分布。

Then the downlink SINR distribution of orthogonal beam-forming SDMA systems is derived .

基于最大信号干扰噪声比的无线再生中继系统合并方案

Maximum Signal-to-Interference-and-Noise-Ratio Combiner for Wireless Regenerative Relaying Systems

该方案通过对干扰项的分析，以最大化信号干扰噪声比为目标，设计反馈信息。

After deeply investigation and analysis of interference term expression , feedback information is design according to maximizing signal to interface plus noise ratio .

并在此基础上提出了空分多址系统基于有限反馈限制的方法，根据下行信号-干扰比的分布设置信道矢量量化误差阈值、信道增益阈值，实现了信道状态信息反馈的精确控制。

Base on the distribution , a feedback-control scheme for SDMA systems is proposed . The scheme sets thresholds both for quantization error and channel gain to implement the precise control of feedback .

本文首先从信号&干扰功率比（信干比）的角度分析了合成孔径雷达（SAR）噪声干扰的效果及特点，分析了对SAR系统实施噪声干扰的特殊性以及影响SAR噪声干扰效果的因素。

The effectiveness and characteristics of noise jamming to synthetic aperture radar ( SAR ) are firstly analyzed through signal-to-jam ratio ( SJR ) in this paper , and the particularity of jamming a SAR and the factors which impact the effectiveness of noise jamming are studied .

载频信号对干扰信号比

Ratio of carrier-to-interfering signal

利用Lagrange乘子法，分别推导了以信号干扰功率差（PDSI）和信号干扰噪声比（SINR）作为优化目标函数时接收天线的全局最优极化；

The receiving antenna 's global optimal polarizations are derived using Lagrange multiplier method with SINR ( Signal-to-Interference-and-Noise-Ratio ) and PDSI ( Power-Difference-between-Signal-and-Interference ) as the objective functions respectively .