1) Variable transmit diversity gain
可变发射分集增益
2) variable gain
可变增益
1.
It is an amplifer which has some good performances, such as high precision,broad band and variable gain.
详细介绍了一种高精度、宽带、可变增益的放大器 AD6 0 3,并给出了它的几种典型使用电
2.
The AD8370 is a low cost, digitally controlled, variable gain amplifier that provides high IP3 and low noise figure.
AD8370是美国AD公司推出的一种低成本、数字控制的可变增益放大器 ,它具有高IP3和低噪声系数以及优良的失真性能和较宽的带宽 ,可以广泛应用于差分ADC驱动器、IF采样接收器、射频/中频放大中间级、SAW滤波器接口、单端差动转换器中。
3.
A kind of wide band MMIC variable gain low noise amplifier chip was designed, and fabricated successfully with 0.
报道了一种微波宽带 Ga As单片可变增益低噪声放大器芯片。
3) diversity gain
分集增益
1.
Performance analysis shows that with uncorrelated transmit and receive antennas the TAS/MRC scheme can achieve full diversity gains and if all t.
性能分析表明:采用不相关的发射和接收天线,TAS/MRC方法能实现满分集增益;随着接收相关的增强,系统的分集增益减小,性能下降;反之,系统的编码增益增大,从而对系统性能的下降有一定的抵消作用。
2.
By partitioning antennas into small groups as the transmitter, using individual space-time codes to transmit information from each antenna group, optimizing transmit power, and decoding an individual space-time code with group interference suppression method and ML detecting at the receiver, this method can improve the diversity gain and error performance .
该方法在不增加设备复杂度的基础上提高了系统的分集增益和误码性能。
3.
An empirical model of site diversity for stratospheric communications was proposed with diversity gain data for stratospheric communications that are obtained by simulating three dimention spatial structures of rain cells using geometry method.
通过模拟雨区的三维结构 ,利用几何方法获得平流层通信分集增益数据 ,建立了平流层通信站分集的经验模型 ,并用实验数据对模型进行了检验 。
4) Diversity gains
分集增益
1.
In this paper, the coding gains, diversity gains and spectral efficiency of the previous space time codes are analyzed systematically according to the concept of pair wise error probability.
从成对错误概率的角度出发 ,详细分析比较了现有 3种空时编码的编码增益和分集增益 ,以及它们与频带利用率之间的关系 ,结果表明 ,分层空时码可以获得的频带利用率远大于其他两种空时码 ;但对分集增益而言 ,网格空时码和分组空时码均可达到系统所能提供的最大分集增益 ,而分层空时码由于受实现方式的制约 ,只能得到其中一部分分集增益 。
5) collector-to-emitter current gain
集电极-发射极电流增益
6) maximum achievable diversity gain
最大可达分集增益
1.
A novel design of OFDM-based space-frequency codes is proposed such that the maximum achievable diversity gain is available.
提出了一种基于OFDM达到最大可达分集增益的空频码设计方案。
补充资料：导弹机动发射(见导弹发射方式)
导弹机动发射(见导弹发射方式)
maneuverable launching of missile
算薰;笙簌巍骂 able launching 式。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条