介绍了雷达接收机噪声及其相关函数的特点。
This paper introduces the characteristics of the noise in radar receiver and its interrelate function.
重点介绍应用新器件、新技术实现对雷达接收机噪声系数的测试。
The focal point is how to use new elements and new technology to accomplish measurment about noise coefficients of radar's receiver.
得到了最大用户数时最佳的干扰功率密度与接收机噪声功率密度比。
The optimum mutual interference power density to receiver noise power density ratio for …
通过对二次群光接收机噪声性能的测量，比较了各种设计方案，验证了理论分析的正确性。
By measuring the receiver's noise performance of second order multiplex, various design schemes are compared and the correctness of the theoretical analysis is verified.
从超宽带雷达天线、UHF/VHF波段接收机噪声温度以及最小可检测的信噪比三个方面研究了超宽带合成孔径雷达方程。
Three subjects-UWB radar antenna, UHF/VHF band receiver noise temperature, and the target detection from background, which are main factors in UWB SAR range equation, are studied.
围绕超高速这一特点，对系统的相位噪声、接收机噪声系数、发射功率、系统门限接收电平等作详细的论证，以确定总体设计方案。
Round the feature of the ultrafast speed, make the detailed description of phase noise, receiver noise figure, launch power, threshold level of system.
无杂散动态范围被定义为用dB表示的，接收机噪声和两个相等杂散信号的电平的差，这两个杂散信号的互调产物与接收机噪声相等。
It is defined as the difference in dB between receiver noise and the level of two equal spurious signals whose intermodulation products are equal to the receiver noise.
在消息解码的过程中，沿着信道的噪声可能干扰接收机对来自发送机的信号的解释，其可以破坏或失真信号。
In the process of message decoding, noise along the channel may interfere with the receiver's interpreting of the signal from the sender it can destroy or distort the signal.
混频器的变频损耗和噪声温度的测量可以用改变中频部分的噪声温度使接收机的系统噪声温度变化来加以确定。
The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.
锁相接收机的作用是重建原信号而尽可能地去除噪声。
The task of a phase-lock receiver is to reproduce the original signal while removing as much of the noise as possible.
低噪声、高线性度的射频前端设计是整个射频接收机系统电路设计中的关键。
Low noise, high linearity RF front end circuit is the key of the whole RF receiver system design.
这种SIS混频接收机性能可靠，且可用闭合循环氦制冷机冷却，在4.3K温度操作即可达到好的噪声性能。
This SIS mixer receiver is reliable, and can achieve good noise performance even operated at 4.3k temperature with a close cycle helium refrigerator.
设计了一种用于零中频gps接收机的低闪烁噪声混频器。
A low flicker noise mixer for zero-IF GPS receiver is presented.
基于混沌同步理论，设计出低噪声的混沌发射机和接收机电路，阐述了实现同步和保密通信的原理。
Based on the theory of chaotic synchronization, a chaotic transmitter and receiver circuit with low noise was proposed, and the principles of synchronization and secure communication were expounded.
本文分析了激光源FM量子噪声对数字光纤相干通信接收机性能的影响。
This paper deals with the effect of FM quantum noise of laser sources on the receiver performance in coherent fiber-optic communication systems.
等效噪声温度高达数十万度的A/D模块，引起了数字接收机性能的深刻变化。
The performance of a digital receiver will be changed significantly when the equivalent noise temperature of the A/D module rises to hundred thousands degrees.
前置放大器是光接收机前端中最重要的组件之一，它直接影响光接收机的速度、噪声、灵敏度等整体性能。
Preamplifier is one of the most important components in photoreceiver front-end. It directly affects the performance of light receivers such as speed, noise and sensitivity.
本文对电视接收机的视频通道噪声功率互换前后进行了讨论。
The present paper discusses the noise powers of the video channel before and after their exchange.
在无线监测系统中，由于受环境、设备等因素的影响，接收机接收到的无线电信号不同程度地被噪声污染，严重影响到监测结果的可靠性。
In wireless monitoring system, the received radio signals are polluted to a greater or lesser degree by the noise due to the influence of environment, equipments and other factors.
文章分析了传统接收机的系统性能，从误码率公式上分析了噪声乘噪声项带来的严重影响。
This paper analyzed the performance of traditional receiver of TR-UWB, and effect of noise-on-noise item by BER form.
总级联该接收机的噪声系数低至1.4分贝，可以帮助提供室内使用的敏感性增加。
The total cascaded noise figure of this receiver is as low as 1.4 dB that can help provide increased sensitivity for indoor use.
基于这一情况，本文以气体放电噪声源测量“RS12”接收机为例对接收设备噪声特性的测量进行了详细的阐述。
In this paper, the noise performance of receiver "RS12" are measured by means of gas discharged noise as example and explained in detail.
本文介绍了微波辐射计接收机逆向辐射噪声温度的计算方法，同时也给出了降低这种逆向辐射噪声温度的两种方法。
This paper presents a way of inverse-direction radiating noise temperature calculation in microwave radiometer receiver. And two methods are given to reduce the radiating noise.
分别讨论了在理想假设和实际情况下超外差接收机的双边带噪声系数和单边带噪声系数，给出了单边带接收机的某些设计方案。
This paper discussed the double sideband noise figures and single side band noise figures of the superheterodyne receivers in a ideal hypothesis and the practical case respectively.
分析卫星数字电视接收系统的性能以及卫星数字电视接收机中R-S解码器、卷积解码器和QPSK解调器等部分电路对系统抗噪声性能的贡献。
This paper analyses the anti-noise performance of digital satellite TV receiver system, and discuses the anti-noise capability of R-S decoder, of convolutional decoder and of QPSK demodulator.
本文首次提出了影响超高频rfid数字接收机性能的各种因素，明确了噪声和直流偏移干扰对读写器性能的影响关系。
By analysis the factors which affect of UHF RFID reader's digital receiver, make it clear between signal noise first time, DC offset and receiver performance.
尤其关键的是第一个本振的相位噪声，我们需要调谐我们接收机的合成器。
Particularly critical is the phase noise of the 1st LO, the synthesizer, which we need to tune our receiver.
雷达接收机信道对于信号检测是最佳系统，当用其传输遥测信号时，由于信道噪声的影响，使遥测信号码间距发生变化，从而影响遥测信息传输精度。
But change of telemetering signal interval caused by channel noise will affect transmission accuracy of telemetering information when it is used to transmit telemetering signals.
传统的通信系统中，接收机通常是在假设信道中附加噪声是高斯白噪声的情况下设计的。
In conventional communication systems, receivers are usually designed in the presence of additive Gaussian noises.
在接收机处，确定所接收的数据流的相位旋转以去除残留频率误差或者估算相位噪声。
At a receiver, a phase rotation of the received data stream is determined to remove a residual frequency error or to estimate the phase noise.
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