Sine sweeping constant current exciting for geophone characteristic parameter measurement and identification 地震检波器特性参数识别的一种新的正弦扫频恒流激励方法
It uses the condition to design the system . it also describes theories of dealing with the system error 本章还讨论了扫频式微波干涉仪诊断系统的误差处理方法及原理。
2 . the trigger circuit adopt sweep frequency technique and possesses high reliability and anti - interference ability 2触发电路采用扫频式电路，具有高可靠性和高抗干扰能力。
Both fine and coarse center frequency controls , combined with a scanwidth selector provide simple frequency domain measurements from 100 khz div 中心频率控制有微调和粗调，扫频宽度选择从
At last the reflection and its removing method are introduced . thirdly , the results of " nose - to - nose " calibration technology and swept - sine method are compared 第三、介绍了“ nose - to - nose ”校准技术与扫频源法的比对。
In chapter 5 , the work is to emulate of system using software ads1 . 5 . in chapter 6 the main work is to introduce the microwave circle circuit 第五章用ads软件仿真了扫频式微波干涉仪的高频部分的原理、性能及有关器件的要求。
And then swept - sine method is introduced . at last the comparison results are discussed . finally , the extended “ nose - to - nose ” calibration technology is introduced emphatically 其次,介绍了扫频源法;最后,介绍了两种方法的比对结果。
Logarithmic sweeps can be performed with a programmable frequency marker signal . programmable burst count and gating allow you to further customize your signal 带有可编程频率标记的线性和对数扫频信号,可编程的脉冲列计数和选通能使您进一步自定义信号
The digital tester for frequency response characteristic , which is also called frequency - sweeping instrument , plays a very important role in modern electronic measurement 扫频仪也称频率特性测试仪,用于测试网络的幅频特性和相频特性,在现代电子测量中占有重要的位置。
New interference methods , such as sweeping frequency interference and faster - hop - collision interference , become a new focus of electronic countermeasures to fh communication systems 摘要扫频式干扰、更高跳速碰撞干扰等新的干扰方法成为跳频通信系统电子对抗领域中又一重要研究方向。
