调幅器

考虑微波电路分布参数对载波相位的影响，提出了采用相位补偿方法实现X波段的调幅器，分析了相位误差对输出信号的影响，并给出了电路设计和仿真的结果。

Considering the impact of microwave circuit 's distributed parameter to carrier phase , a method of phase compensation is given to obtain the amplitude modulator in X-band . Analyzes the impact of phase error to output signal . Then circuit design is presented and simulation result is obtained .

调幅器实验中的问题分析

The Analysis of the Problem in the Experiment of Amplitude Modulator

X波段相位补偿调幅器

X-band Amplitude Modulator with Phase Compensation

调幅器带通滤波器输出通风器出气管滤气器

Modulator band electrical system out ventilator outlet pipe air cleaner

电子移相调幅器在数字式介质损耗测量中的应用

Application of electronic phase shift and amplitude modulation in digital dielectric loss measurement system

调幅器带通滤波器输出模拟滤波器到数字滤波器简单变换方法

Modulator band electrical system out Research on a Simple Transform from Analogue Filter to Digital Filter

在电话信号低数码率传输时，若使用数字式压伸增量调制器，由于脉冲调幅器控制电平和信号电平的非线性特性，调制器的动态范围受到一定限制。

The dynamic range of a digital companded delta codec for transmitting voice signals in a lower bit rate is confined within the limit of linearity between the control level of the pulse amplitude modulator and the signal level .

文中分析了该方案中涉及到的关键技术，主要有四个方面，即调幅调相器的设计、主功放和误差功放的设计、导频产生和注入、搜索算法和控制算法选择。

The key technology involved by the programmer is analyzed . The four main aspects are the design of amplitude modulation and phase modulation , the main power amplifier and error amplifier design , produce and pilot injection , the search algorithm choice and control algorithms choice .