通信系统

The instrument can measure the CW that uses signal of complex in EW, radar and communication system modulation, peak value and real average power.

仪器能够测量利用在EW、雷达和通信系统中简单调轨制信号的CW、峰值和真正的平均功率。

As the coding is simple and the rate of error identify is low,the Cyclic Redundancy Check is used broadly.

循环冗余校验(Cyclic Re-dundancy Check，CRC)由于编码简单、误判概率低，在通信系统中得到了广泛的应用。

In a communication system, the decrease of noise is very important problem.

在通信系统中，降低噪声是一个非常重要的问题。

With the development of the digital technology,digital modulation and demodulation technology is being used widely.

0引言在直接序列扩频通信系统中，通常采用BPSK的载波调制方式。

In this paper it is concentrated on modulation and demodulation technology of chaotic secure communication system.

本文就是以混沌保密通信系统的调制解调技术为研究内容展开研究，主要工作及所取得的成果如下： 1。

In a communication system, a method and an accompanying apparatus provide for efficient modulation and demodulation processes.

通信系统中，一种方法和附属装置提供了有效的调制和解调过程。

It has become an important technology that realizes the modulator and demodulator of communication system in digitalization method.

利用数字化方法设计通信系统中的调制解调技术是实际应用中的一项重要技术。

A general formula is derived by using power series by which we can predict the amplitude and power level of PIM (especially for odd-order PIM).

采用合成干扰模型假设和特征函数方法简化了PIM问题，对包括PIM干扰在内的总干扰的统计特性进行了数学分析，进而对无源互调对通信系统的抗噪性能的影响做了数值模拟。

Payloads have included a laser designator and various communications systems.

负载包括一套激光指示器和各种不同的通信系统。

This thesis is devoted to the security of the mobile communication system.

本文着重研究了移动通信系统的安全。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷