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宽带波形设计
- 本文件是基于高斯正弦波行的宽带脉冲波形设计,保证了相对带宽大,衰减满足3db要求-this document is based on the Gaussian line broadband sinusoidal pulse waveform design, ensuring a relatively large bandwidth. attenuation meet the requirements Z
16QAM_softdemode
- 在无线网络的接收机端,对16进制的正交幅度调制信号进行软解调, 这种软解调方式比硬解调会提高2-3dB
Vectorization-and-Edgereserved-Quantization-of-Ima
- 本文通过对JPEG图象压缩标准的分析,找到了一种解决这一问题的方法,即保边缘图象量化方法。在JPEG量化前,通过分析判断这一图象块是否为边缘所在块,对于边缘所在块采用较细的量化步长;对于其他块可使用较粗或者原始的量化步长进行量化,这样便可改善图象边缘处的质量。文中是利用了DCT 变换后的直流系数DC值来确定图象边缘块的,因为直流系数为这一图象块的平均亮度,如果相邻块的DC值变化较大,则它所包括的边缘细节就较多,否则说明这一图象块变化
edfa
- EDFA的掺铒光纤长度模拟计算,附3篇相关论文,330mw的980nm泵浦,3db的泵浦吸收,12m最佳长度已经得到验证,可作为EDFA设计参考
宽带波形设计
- 本文件是基于高斯正弦波行的宽带脉冲波形设计,保证了相对带宽大,衰减满足3db要求-this document is based on the Gaussian line broadband sinusoidal pulse waveform design, ensuring a relatively large bandwidth. attenuation meet the requirements Z
16QAM_softdemode
- 在无线网络的接收机端,对16进制的正交幅度调制信号进行软解调, 这种软解调方式比硬解调会提高2-3dB-Receiver in the wireless network client on the 16-band signal of the quadrature amplitude modulation demodulator soft, this soft than hard demodulation demodulator will
Vectorization-and-Edgereserved-Quantization-of-Ima
- 本文通过对JPEG图象压缩标准的分析,找到了一种解决这一问题的方法,即保边缘图象量化方法。在JPEG量化前,通过分析判断这一图象块是否为边缘所在块,对于边缘所在块采用较细的量化步长;对于其他块可使用较粗或者原始的量化步长进行量化,这样便可改善图象边缘处的质量。文中是利用了DCT 变换后的直流系数DC值来确定图象边缘块的,因为直流系数为这一图象块的平均亮度,如果相邻块的DC值变化较大,则它所包括的边缘细节就较多,否则说明这一图象块变化
edfa
- EDFA的掺铒光纤长度模拟计算,附3篇相关论文,330mw的980nm泵浦,3db的泵浦吸收,12m最佳长度已经得到验证,可作为EDFA设计参考-EDFA erbium-doped fiber length of the simulation, with three related papers, 330mw of 980nm-pumped, 3db pump absorption, 12m in length has been pro
3dbox
- 经典3d推箱子,日,好游戏,带源码,学游戏编程就靠它了,速度下载吧-Classic Sokoban 3d, Japan, and a good game, with source code, learning game programming relied on the speed to download it
work
- 编写一个函数,设计给定3DB点的IIR滤波器,这样的方法简单方便-The preparation of a function, the design of a given 3DB point IIR filters, this method is simple and convenient
Viterbi
- 无线光通信;卷积交织;Viterbi并行译码 在误码率为10的负6次方 时,相对于最佳阈值 判决有约6.9dB的编码增益,与完美交织下的编码性能仅相差0.3dB-Wireless Optical Communication Convolutional Interleaver Viterbi decoding in parallel at the bit error rate of 10 negative 6 power
soulfly
- 编写MATLAB的M文件,用该文件对采用包络检测法解调的2ASK系统的抗噪声性能进行1000个符号的蒙特卡罗法仿真,画出误码率与信噪比之间的关系曲线,其中信噪比的取值为r=0dB,2Db,4Db,6dB……10Db,同时画出误码率与信噪比的理论曲线,其中信噪比的取值为r=0dB,0.1dB,0.2dB,0.3dB……10Db-The preparation of MATLAB M-file, use the document on th
aliasingfilter
- 1)设计Butterworth型音频抗混叠滤波器; 2)参数: 下通带频率300Hz;上通带频率3400Hz; 下阻带频率280Hz;上阻带频率3600Hz; 通带最大衰减0.3dB; 阻带最小衰减40dB; 3)采用一低通滤波器和一高通滤波器级联; 4)分别确定LPF和HPF的性能指标; 5)求出两滤波器的系统函数和频率响应,并画出其幅频特性曲线; 6)求整个滤波器的系统函数和频率响应,并画出其幅频
ch3example1A
- fp=2400hz,fs=5000hz,rp=3db,rs=25db.求其3dB时的各项参数!-fp = 2400hz, fs = 5000hz, rp = 3db, rs = 25db. for its 3dB at the time of the parameters!
ch3example1B
- 椭圆滤波器,fp=2400hz,fs=5000hz,rp=3dB,rs=25dB,求其3dB时的各项参数!-Elliptic filter, fp = 2400hz, fs = 5000hz, rp = 3dB, rs = 25dB, for its 3dB at the time of the parameters!
FIR
- 已知一低通滤波器的采样率为2KHz,通带为500Hz,阻带为600 Hz,带内波动3dB,带外衰减-50dB,滤波器的相位具有线性特性,具体幅频特性见下图。要求用等波纹方法设计出该FIR滤波器,然后用TMS320C54x汇编语言编程,并在CCS下调试实现该FIR滤波器。-A low-pass filter known to the sampling rate of 2KHz, passband to 500Hz, stopband to
digitalfilter_in_C_language
- We have to design a second order Butterworth filter having a sampling frequency of 20 kHz and -3db cut of frequency at 2 kHz in visual C. Only low frequency signals can pass through this filter and the signals having the
ADF
- 音频ADC前端电路,20-20kHz 3dB带宽,可自行电压调节偏置与增益。-Audio ADC front-end circuit ,20-20kHz 3dB bandwidth, self-bias and voltage regulator gain.
butterworthlpdf
- 巴特沃斯數字低通濾波器。採樣率8000HZ,fp=2100hz,fs=2500hz,Rp=3db,Rs=25db.-butterworth LPF
3db
- 使用matlab通过微弯波导和直波导耦合设计一个3db耦合器-Through the use of matlab Microbend waveguide and the straight waveguide coupled design a 3db coupler