bit-error rates造句
例句与造句
- Cvsd （ continuous variable slope delta modulation ） voice coding enables operation at high bit - error rates
连续可变斜率增量调制的语音编码可以在高误码率的情况下正常工作。 - Reducing the bit - error rate in digital communication with error - correction technology and improving the quality of communication have been widely defined and used as the standard technology all over the world
利用纠错码技术降低各类数字通信系统的误码率,提高通信质量,已经在世界上许多国家作为一门标准技术而广泛采用。 - Future mobile communications have to support the transmission of high rate data and multimedia applications in the radio spectrum , which is already extremely scarce . the basic idea of adaptive coded modulation is to maintain a constant throughput by varying the transmitted power level , symbol transmission rate , constellation size , coding rate or any combination of these parameters . thus , without sacrificing bit - error rate ( ber ) , these schemes provide high average spectral efficiency by transmitting at high speeds under favorable channel conditions , and reducing throughput as the channel degrades
自适应编码调制( adaptivecodedmodulation , acm )的基本思想是在不牺牲系统传输性能(比如ber )为代价的前提下,通过单独改变发送功率、波特率、编码方案、码率、调制方式,或者是综合改变前面所述的各种参数,在有利的信道条件下,获得较大的吞吐量,当信道质量下将时,相应地降低传输速率,最终达到提高平均频谱效率的目的。 - In this paper , bit - error rate performance analyses are presented for coded and un - coded frequency hopping m - ary frequency - shift keyed systems under the condition of additive white gaussian noise ( awgn ) and partial band noise jamming and multitone jamming . the use of error - correct codes provide a way to improve the performance of frequency hopping system , particularly the use of reed - solomon code in a fh system under the condition of partial band noise jamming can greatly improve the performance of system . so we provide the way of coding and decoding of rs code in c language . in the end , we offer the simulation of the performance of time diversity fh / 2fsk system over partial band jamming noise channels
第一章为绪论，叙述跳频通信的发展趋势，以及基本概念，第二章及第三章介绍提高抗部分频带干扰的前向纠错码reed - solomon码的原理和实现方法。第四章研究跳频通信系统在各种干扰条件下的性能。最后在第五章以fh mfsk系统为例，探讨在部分频带干扰下的系统性能，并进行计算机仿真，仿真结果表明采用分集技术和各种编码技术对于系统的性能改善具有明显的效果。 - It's difficult to find bit-error rates in a sentence. 用bit-error rates造句挺难的