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- This paper introduces the basic principle of the filter,expounds the structure of the spiral bandpass filter and the design method for the spiral bandpass filter based on the communication frequency,and proves this design method through testing. 介绍了滤波器的基本原理,叙述了螺旋滤波器的结构以及基于通信频段的螺旋滤波器设计方法,并通过实验验证了该设计方法。
- Keywords STB communication frequency synthesis phase locked loop; 采集站;通讯;频率合成;锁相环;
- The Study on the Test Technology of CDMA Mobile Communication Frequency Station CDMA移动通信直放站检测技术探讨
- A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
- I am in communication with him on this subject. 关于这问题，我正和他交换意见。
- Radio frequency and communication test equipment. 射频通信综合测试仪。
- The essence of language is communication. 语言的本质是沟通。
- Language is an instrument for communication. 语言是交际的手段。
- We had a discussion on language and communication. 我们就语言和交际问题进行了讨论。
- Radio communication has annihilated space. 无线电通讯已消除了空间的阻隔。
- In data communication, transmitted and received messages. 在数据通信过程中，被发送和接收的报文量。
- This area has not been covered by the communication net. 这个地区还不在通讯网的覆盖之内。
- Communication by the exchange of letters. 通信联系通过信的交换而进行的交流
- In radio communication, either short or long waves may be used. 无线电通讯可以采用短波也可以采用长波。
- Communication of audible signals encoded in electromagnetic waves. 无线通讯以电磁波密码进行的可听信号的联络
- The war stopped postal communication between the two countries. 战争中断两国间的邮政通讯。
- They structure their communication to meet the needs of the client. 他们建立通讯系统以满足客户的需要。
- The satellite has become an important means of communication. 卫星已成为一个重要的通讯工具。
- Radio and television are important means of communication. 无线电和电视是重要的通信手段。
- The heavy snow has prevented all communication with the highlands. 大雪阻断了与高地之间的一切联系。
