通信频带 meaning in Chinese
communication band
Examples
- In all kinds of complicated network , oriented linking and unlinking , communication frequency resource is strained , and bandwith to transmitting audio frequency signal is too restricted , complicated and fluky , while audio frequency data exponential have been increased in the last several years . under the circumstances , based on the research of predecessor , this paper studies wavelet analysis ' s maths gist and practices significance on signal process , and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data , which gives attention to coding efficiency , multirate and compression delay . simulation experiment on the arithmetic has been done by matlab
针对无连接和面向连接的各种复杂网络环境下,通信频带资源紧张,音频传输带宽有限且复杂多变,而各种音频数据又日益增多的局面,本文研究小波分析在信号处理方面的数学依据和在数据压缩方面的实际意义,在前人不断工作的基础上,提出了一种优化小波包变换编码方案用于音频数据的压缩算法,兼考虑了编码效率、多码率和压缩时延多个方面,并在matlab环境下做了仿真实验，对各种音频信号及多种小波函数做了仿真结果比较,实验结果证明该算法可以在一定计算复杂度下可以很好地改进压缩效果,达到多码率下实现实时编解码的过程,在高速dsp芯片等硬件设备支持下,可以有效应用于实际复杂多变信源编码。 - The satellite - telecommunication has a serial of characteristic such as long distance , large coverage area , wide communication band , big transmission capacity , high quality , it has made a rapid progress in the last decades and become one of the most powerful communication methods today
而卫星通信具有通信距离远、费用与通信距离无关、覆盖面积大、不受地理条件限制、通信频带宽、传输容量大、适于多种业务传输、可进行多址通信、通信质量高等一系列特点，几十年来获得了迅速的发展，成为现代强有力的通信手段之一。