... 技术相关 分别是直接序列扩展频谱（Direct Sequence Spread Spectrum,DSSS),跳频扩展频谱（Frequency Hopping Spread Spectrum,FHSS),和正交多路分频（Orthogonal Frequency Division Multiplexin..
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...相关 分别是直接序列扩展频谱（Direct Sequence Spread Spectrum,DSSS),跳频扩展频谱（Frequency Hopping Spread Spectrum,FHSS),和正交多路分频（Orthogonal Frequency Division Multiplexin..
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频率跳动扩展频谱 frequency-hopping spread spectrum
大多数扩展频谱信号用数字计划称为跳频。
Most spread-spectrum signals use a digital scheme called frequency hopping.
直接序列扩频通过扩展干扰频谱降低有效干扰功率进行抗干扰，跳频则主要是通过频点跳变的方式躲避干扰。
DSSS system combats the jamming by reducing the effective power of jamming, and FH system does through the frequency hopping to avoid jamming.
根据扩展频谱方式的不同，扩频通信系统分为：直接序列扩频、跳频扩频和混合扩频。
According to different ways of spread spectrum, spread spectrum communication systems are divided into: direct sequence spread spectrum, frequency-hopping spread spectrum and hybrid spread spectrum.
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