该序列通过数-模转换器和低通滤波器后，产生出频率扫描信号。
After the sequence passes through digital-to-analog converter and low pass filter, the desired frequency sweep signal is synthesized by the method of direct digital synthesis.
正交模转换器采用方波导阶梯阻抗匹配与波导缝隙耦合的设计思想。
The ortho-mode transducer adopts the design idea of square waveguide stepped impedance matching and waveguide slot coupling.
集成光学模转换器是光开关，光调制器，光学滤波器的重要组成部分。
Integrated optical mode converter is an important component of optical switches, modulators and filters.
本文的主要工作是设计声光可调谐滤波器的光波导、模转换器和模分离器。
The thesis describes the design method of AOTF's waveguide, mode converter and mode-splitter, and gives the design results.
设计电流模脉冲宽度调制直流转换器时，人们广泛采用斜坡补偿电路来消除谐波振荡。
In the design of current-mode PWM DC-DC converters, the slope compensation method is widely used to prevent sub-harmonic oscillation.
主要内容是基于线性直方图法测量模—数转换器性能的片上模拟锯齿波发生器的实现方法。
This paper is mainly about an analog saw-tooth signal generator used for linear histogram test of ADCs.
最后，对这种模-数转换器的应用作了说明，并用实验验证了估算测量速度公式的正确性。
Finally, it gives the explanation about the applications of this converter and proves the correctness of the formula estimating the measured speed by experiment.
采用选择区域生长、量子阱混杂和非对称双波导技术制作了电吸收调制器与半导体光放大器和双波导模斑转换器的单片集成器件。
On the basis of the study of the single circular groove guide and symmetric double circular groove guide, a new structure, asymmetric double circular groove guide, has been put forward.
在这种结构中，高斯模可以转移到环形模，因此这种光纤可以作为一种模式转换器。
In this structure, the Gaussian mode could be transferred to the ring mode. So FEPCF could used as a mode convertor.
由于高功率源采用BJ-32波导输出信号，故馈源系统中还应包含一个矩形到圆形的模式转换器，将TE10模转换为TE11模。
Since the high power signal is transmitted from the BJ-32 waveguide, a mode convertor from rectangular TE10 mode to circular TE11 mode in the feed system should be provided.
由于高功率源采用BJ-32波导输出信号，故馈源系统中还应包含一个矩形到圆形的模式转换器，将TE10模转换为TE11模。
Since the high power signal is transmitted from the BJ-32 waveguide, a mode convertor from rectangular TE10 mode to circular TE11 mode in the feed system should be provided.
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