Frequency modulation minimizes noise and provides greater fidelity than amplitude modulation, which is the older method of broadcasting.
调频最大程度的减小噪音，并且比调幅的保真度高，调幅是一种较老的传播方法。
This paper has introduced the advantages of digital frequency modulation broadcasting transmitter, emphasized the basic principles of digital frequency modulation broadcasting exciter and the composing principles and basic functions of each module.
介绍了数字调频广播发射机的优点，重点介绍了数字调频广播激励器的基本原理和各模块的构成原理及基本功能。
According to the state of the art on digital radio broadcasting and trends on it, orthogonal frequency division modulation (OFDM) is selected as in digital radio broadcasting system.
根据国内外关于数字广播的研究动态及技术的发展趋势，本文采用多载波技术作为数字广播系统的调制技术，而不考虑单载波方案。
Contrasting analysis of clutter and noise of frequency modulation broadcasting with echo power of target
调频广播台杂波和噪声与目标回波功率对比分析
The system of the device include Digital Audio Broadcasting Tuner, Radio Data System Encoder, Baseband Mixer, Subcarrier Modulator, Frequency Modulation Modulator and Microprocessor.
此转换装置的系统架构包含数位广播讯号谐调器、无线数据系统编码器、基频混波器、副载波调变器、频率调变调变器以及微处理机。
With the development of synchronous broadcasting technology, the synchronous carrier signal generator based on the homologous modulation technology and the frequency synthesis technology is becoming highly valued.
随着同步广播技术的发展，使用同源调制技术和频率合成技术制成的同步载波发生器越来越受到重视。