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123456
MATLAB 天线方向图
包裹多中的天线(tian xian fang xiang tu jk jkjds jkj jkjs oie kjc lkd m,m ik oiejn jkjda iopewjk peowp nkfkl )
- 2009-06-01 23:53:25下载
- 积分：1
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项目4
说明： 任务：设计一个4×2.5Gbit/s 长距离光纤传输系统，并利用OptiSystem 仿真验证。
要求：
1．采用波分复用技术，波长设置以100GHz 为间隔，频率分别为193.1THz、193.2THz、193.3THz、193.4THz，每个波长传输速率为2.5Gbit/s（NRZ），传输距离为300km。采用常规光纤，光纤损耗系数为0.25dB/km。
2．单通道光发送机最大输出功率为0dBm，光接收机的接收光功率不低于－26dBm，过载点为－10dBm。
3．可以采用EDFA 作为线路放大器，其中EDFA 的输入功率限制在－18～2dBm，最大输出功率20dBm，增益范围为13～25dB，噪声指数4.0dB。(Task: Design a 4 x 2.5 Gbit/s long-distance optical fiber transmission system, and use OptiSystem simulation to verify.
Requirement:
1. Using wavelength division multiplexing technology, the wavelength is set at 100GHz intervals, with frequencies of 193.1 THz, 193.2 THz, 193.3 THz and 193.4 THz, respectively. The transmission rate of each wavelength is 2.5 Gbit/s (NRZ), and the transmission distance is 300 km. The loss coefficient of conventional optical fibers is 0.25dB/km.
2. The maximum output power of a single-channel optical transmitter is 0 dBm, and the receiving power of an optical receiver is not less than -26 dBm, and the overload point is -10 dBm.
3. EDFA can be used as line amplifier, where the input power of EDFA is limited to - 18-2dBm, the maximum output power is 20dBm, the gain range is 13-25dB, and the noise index is 4.0dB.)
- 2019-05-13 09:39:41下载
- 积分：1
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FFT
Matlab关于傅里叶变换的pdf资料 有用(Matlab program on the Fourier transform)
- 2010-06-03 17:14:38下载
- 积分：1
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twoto22
ldpc在系统矩阵twoto下的系统仿真，在参数双可变情况下对系统输出的影响，matlab7.0编译通过()
- 2007-10-05 12:53:45下载
- 积分：1
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kechengsheji
通信原理课程设计，包括各种调制，信道编码等。有解释，图形，源码。(Communication theory course design, including modulation, channel coding. Have explained, graphics, source code.)
- 2010-07-18 16:40:25下载
- 积分：1
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tongbu
matlab仿真程序：扩频发射接收机用匹配滤波器的方法同步(matlab simulation program: spread-spectrum receiver with matched filter fired way synchronization)
- 2008-04-14 10:34:46下载
- 积分：1
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uar
说明： 本程序实现USART异步方式连续接收数据并进行奇校验，在4M的主频下波特率为9600。(USART asynchronous implementation of this procedure to receive data and continuous odd parity, baud rate, under the dominant frequency in the 4M 9600.)
- 2010-04-28 14:16:28下载
- 积分：1
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jinkou
集装箱码头一系列机械堆场进口集装箱进行的计算即模拟(container matlab)
- 2012-05-08 18:14:00下载
- 积分：1
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beibaoqiujie
用遗传算法计算背包问题的经典程序,word的文档里面有说明和程序。(Knapsack problem using genetic algorithm the classic program, word document which has instructions and procedures.)
- 2011-10-05 17:33:13下载
- 积分：1
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fm_upfc
Power factor correction for PSAT
- 2012-10-03 03:30:32下载
- 积分：1
