-
qpsk
摘 要:根据HFC网络上行信道的特性,建立了信道模型 分析了上行信道中存在的各种噪声对QPSK
调制技术的影响。结果表明在C /N (传输信道载噪比)较低的情况下,采用QPSK调制方式,可以提高系
统的抗干扰能力。
关键词: QPSK 光纤同轴电缆混合网 上行信道 噪声(Abstract: HFC network in accordance with the characteristics of the uplink channel, the establishment of a channel model an analysis of the various uplink channel noise on the impact of QPSK modulation. The results show that the C/N (transmission channel carrier-to-noise ratio) lower, the use of QPSK modulation, can improve the system of anti-interference ability. Keywords: QPSK hybrid fiber coaxial cable network uplink channel noise)
- 2009-04-12 15:45:03下载
- 积分:1
-
ami_code
实现AMI编码波形,以及
计算其功率谱。(AMI coding waveform to achieve, and to calculate the power spectrum.)
- 2010-11-30 12:46:45下载
- 积分:1
-
Particle
仿真实现了目标跟踪的粒子滤波跟踪,并对误差进行了统计( realize the particle filter)
- 2011-09-30 15:12:50下载
- 积分:1
-
平滑处理
说明: matlab光谱预处理之光谱平滑,包括移动平滑及SG平滑(Spectral smoothing of MATLAB spectral pretreatment, including moving smoothing and SG smoothing)
- 2021-03-03 09:29:34下载
- 积分:1
-
1
说明: matlab 实现的局部图象增强程序,是自己编的饿(matlab realize local image enhancement procedure is own the hungry)
- 2008-03-12 15:14:48下载
- 积分:1
-
psogaoshang
说明: 高尚版本的粒子群算法源代码,用MATLAB编写(High version of Particle Swarm algorithm source code written with MATLAB)
- 2010-04-18 22:18:06下载
- 积分:1
-
matlab1
matlab实例算法1 之图形应用篇 实用 对初学者大有裨益(Matlab algorithm of graphic example 1 articles
)
- 2012-05-13 22:37:02下载
- 积分:1
-
data-input-and-export
MATLAB统计分析与应用:40个案例分析( data input and export
)
- 2011-07-07 08:07:16下载
- 积分:1
-
CAcode
GPS系统C/A码的产生,37颗卫星的都有,还可以输出前10位进行验证(GPS system, C/A code generation, 37 satellites have, you can also output the first 10 to verify)
- 2012-06-02 17:56:36下载
- 积分:1
-
matlab数据做图
说明: 主要是对数据做初级滤波和组合分析,其实就是对多路数据做了采集并组合做图(Primary filtering and combination analysis of data)
- 2020-06-24 22:00:02下载
- 积分:1