采用放大器,就必须考虑接收机的烧毁电平和压缩电平,采取适当的措施进行校准,以便提高系统测量准确度。
Use amplifiers, receivers must consider the level and burned compression level to take appropriate measures calibration, in order to improve measurement accuracy of the system.
在现代功率测量中,射频脉冲峰值功率的测量广泛应用于如发射机的发射功率、微波接收机的灵敏度、放大器的增益等测量方面。
In modern power measurement, the measurement of the pulse of radio power has been widely used as the transmitter power, the delicacy of microwave receiver, the plus of amplifier and so on.
由于限幅放大器具有设计简单、功耗低、芯片面积小和外接元件少的优点,本文选择限幅放大器的形式来实现光接收机的主放大器。
The latter one was chosen to realize the main amplifier in our design since it has the features of simple topology, few external components and fast responsibility.
OQPS K调制器的不均衡以及放大器的非线性对接收机的性能具有非常大影响。
The OQPSK modulator imbalance and amplifier nonlinearity have a deleterious effect on the receiver performance.
调制器的不均衡以及放大器的非线性对接收机的性能具有非常大的影响。
The modulator imbalance and amplifier nonlinearity have a deleterious effect on the receiver performance.
通过计算机对接收机增益进行智能化控制,既避免了放大器饱和,又使得采样的量化误差最小。
The smart gam-control of the receiver not only avoids the amplifier saturation, but also minimizes the discrete error.
主要用于放大器、光接收机、光发射机。
Mainly used in amplifier, optical receiver and optical emitter.
本文介绍了供研制宽开截获接收机用的一种宽带高增益微波固态限幅放大器的研制结果。
The design and performances of a wideband, high-gain and low-noise microwave solid-state limiting amplifier is described.
内置的缓冲放大器陶瓷接收机开车。
放大器的输出施加到信号检测器,其中信号检测器的输出信号是光接收机的输出功率电平的指示。
An output of the amplifier is applied to a signal detector, wherein an output signal of the signal detector is an indication of an output power level of the optical receiver.
作为光接收机前端的关键部分,限幅放大器要求具有高增益,足够带宽以及较宽的输入动态范围。
As the key component of optical receiver, design of a high-speed limiting amplifier with high gain, broadband and a wide dynamic input range is required.
该光接收机采用单电源供电,由一级放大器、两级源级跟随器和一个反馈电阻组成。
It is composed of an amplifier stage, two stages of source follower and a feedback resistance, and use a single supply voltage.
前置放大器电子线路或装置,用来探测并加强无线电接收机所发出的微弱信号,从而使其达到更加有力的增幅程度。
An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful amplification stages.
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.
分布式放大器以其超宽带、低噪声、高增益等特性成为光接收机前置放大器的优良选择方案。
Distributed amplifier which has characteristics of ultra-wideband, low noise, high gain etc is a good option of photoreceiver pre-amplifier.
基于直接下变频的系统架构,接收机集成了低噪声放大器、I/Q下变频器、去直流偏移滤波器、基带放大器和信道选择滤波器。
Based on a direct-conversion architecture, the receiver integrates LNA, I/Q mixer, DC-offset removal filter, baseband amplifier and channel-select filters on a single chip.
接收机的每个通道都由高频放大器、中频放大、中频采样、数字正交器组成,另外还有DDS信号产生和频率激励源用来形成雷达发射机所需的S波段脉冲调制激励信号。
Each of them is composed of high frequency amplifier, intermediate frequency amplifier and sampling, digital phase uprightness intersector, DDS and the S band signal inspirator for the transmitter.
作为光接收机的关键部分,前置放大器的性能在很大程度上决定了整个光接收机的性能。
The performance of a preamplifier has great effect on the performance of an optical receiver.
光接收机前端放大电路主要由两个关键电路构成:前置放大器和主放大器。
The front-end amplifier for optical receiver is made up of two important circuits: preamplifier and main amplifier.
本文论述了应用最优化算法机辅设计电视接收机视放末级放大器的方法。
In this paper, the computer aided optimizing design of the video amplifier in TV set is described.
在用于光纤传输系统的几个功能电路中,构成光接收机前端放大电路的前置放大器和主放大器是两个关键电路。
In the building blocks of an optical transmission system, the pre-amplifier and the main amplifier are the critical parts.
光纤放大器;光接收机; 光发射机;分配器;
Optical Receiver; CATV products; optical Transmitter; trunk Amplifier; Subscriber Amplifier; Spliter; Taps; Optical Relay;
这对目前无线通讯接收机的可变增益放大器设计具有很高的参考价值。
These results are relatively satisfactory compared to the conventional VGA design. This provides a very good reference for the current VGA design in wireless receiver.
这对目前无线通讯接收机的可变增益放大器设计具有很高的参考价值。
These results are relatively satisfactory compared to the conventional VGA design. This provides a very good reference for the current VGA design in wireless receiver.
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