Description: 估算带宽，先是计算输入信号单边带功率谱密度，然后估算出信号所占的带宽-Bandwidth estimation, first calculating the input signal is single sideband power spectral density, and then estimate the proportion of signal bandwidth Platform: |
Size: 1024 |
Author:罗燕群 |
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Description: 一种核密度估计，或者称作带宽选择的方法，可以估计二维尺度参数，至于多维以上的估计方法尚在开发，多维情况下个人经验好的方法是多次实验取较好值-kernel density estimation, bandwidth selection, two-dimensional scale parameter can be estimated ,for the multi-dimensional approaches are still under development, multi-dimensional cases, personal experience is to do the experiment many times Platform: |
Size: 623616 |
Author:苗晨 |
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Description: 设计一完整的移动通信系统物理层传输方案
(WiMAX场景)：
试设计一完整的移动通信系统物理层传输方案并用MATLAB程序实现，要求满足以下指标：
1. 数据速率：5km/hr的移动速度下可实现60Mbps，同时在120km/hr的移动速度下可实现10Mbps，且Eb/No小于20dB时可实现误比特率Pe <= 10-4
2. 信号带宽为20MHz，工作在2GHz频带
3. 信道模型: COST207模型的6径瑞利信道(可参考程序 multipath_code.zip)
请给出以下结果：
A．收发机结构框图，主要参数设定；
B．
误比特率仿真曲线。(考虑非理想同步和信道估计)；-Design a complete system for mobile communications physical layer transmission scheme (WiMAX scene): try to design a complete system for mobile communications and physical layer transmission scheme to achieve with the MATLAB program, requires the following indicators: 1. Data rate: 5km/hr mobile speed can achieve 60Mbps, while the movement in the 120km/hr speed can achieve 10Mbps, and Eb/No less than 20dB can be achieved when the bit error rate Pe < = 10-4 2. signal bandwidth of 20MHz, the work in the 2GHz band 3. channel Model: COST207 model 6 path Rayleigh channel (refer to program multipath_code.zip) Please give the following results: A. Transceiver block diagram, the main parameter settings B. BER simulation curves. (Taking into account non-ideal synchronization and channel estimation) Platform: |
Size: 5120 |
Author:wangjiayin |
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