多频的的英文

• multifrequency

• 多频:    multifrequency
• 的:    4次方是 The fourth power of 2 i ...
• 倍频的:    frequency-doubled
• 单频的:    monokinetic
• 等频的:    equifrequent

例句与用法

1. The result of the research and more then 15 years of experience , has led to the development of a comprehensive software program , and unique materials , that give the company the ability to utilize thin films and technologies to manufacture high - quality , cost - effective , concealable , multi - frequency conformal antennas
   经过研发及15年的发展经验，公司可开发广泛的软件程序和独一无二的材料，公司有能力利用薄胶片和技术制作高质量，合理成本，可隐藏，多频的天线。
2. Section ii describes the design approach and implementation of speech module on mcf5249 coldfire core . the speech codec optimizes g . 729a codes and added voice activity detection of g . 729b to save bandwidth ; the implementation of acoustic echo cancellation uses nlms algorithm and it can reduce echo though designing adaptive fir filter and speech detector ; the dtmf and cpt generate signal using two second order digital sinusoidal oscillators and detect signal by picking up the frequency information . but only get the frequency information is not enough in cpt detector , this thesis introduces a method
   其中对语音编解码器的设计采用优化g . 729a代码达到设计要求,并在此基础上加入g . 729b的静音检测模块,以进一步降低网络传输带宽;对回声消除器的设计采用nlms算法,通过设计自适应fir滤波器和语音检测器达到回声消除目的;对双音多频设计,信号发生端采用构造静态参数表并通过二阶正弦振荡器产生信号,信号检测端提取频率信息以检测信号;对呼叫进程音设计,除了类似双音多频的信号发生及频率检测设计外,还需要检测信号持续时间,作者设计了一种基于匹配状态表的方法以检测信号持续时间。