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PWMSound
脉冲宽度调制（PWM）是英文“Pulse Width Modulation”的缩写，简称脉宽调制。它是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术，广泛应用于测量，通信，功率控制与变换等许多领域。一种模拟控制方式，根据相应载荷的变化来调制晶体管栅极或基极的偏置，来实现开关稳压电源输出晶 体管或晶体管导通时间的改变，这种方式能使电源的输出电压在工作条件变化时保持恒定。 脉冲宽
(Pulse width modulation (PWM) is the English " Pulse Width Modulation" acronym, or pulse width modulation. It is the use of the microprocessor to the digital output of analog circuits for the control of a very effective technology, widely used in measurement, communications, power control and many other fields with the transformation. An analog control means, in accordance with the corresponding changes in load modulation transistor gate or base bias, switching power supply to achieve the output transistors or transistor on-time changes in power in this way can the output voltage in the workplace conditions of constant change. Pulse width)
- 2009-04-14 18:55:27下载
- 积分：1
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GreedyAlgOfdmExample
greedy algorithm in OFDM resource allocation (single user)
- 2021-04-22 20:58:48下载
- 积分：1
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FunctionApproximationusingANN
Function Approximation using ANN without Toolbox
- 2010-07-08 21:51:19下载
- 积分：1
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fx_nihe
利用matlab对实验数据进行非线性拟合(Matlab on the experimental data using non-linear fitting)
- 2009-06-10 13:06:37下载
- 积分：1
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tt
说明： 非常好的数学建模资料，有matlab实现，数学建模与数学实验（第3版）课件+matlab(Mathematical modeling of very good information, there is matlab implementation, mathematical modeling and mathematical experiment (3rd Edition) courseware+ matlab)
- 2011-02-24 18:37:21下载
- 积分：1
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脉冲多普勒 impulse_duopule
脉冲多普勒调制
用多普勒雷达，侦测发现目标(duopule
)
- 2021-01-21 23:48:40下载
- 积分：1
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matlab-1
cdma matlab codes working
- 2012-05-20 16:10:25下载
- 积分：1
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Single-negative-band_02
计算双层单负材料的色散关系投影能带图
(the dispersive relation of the twwo single negative metamaterial layer )
- 2011-11-15 12:52:13下载
- 积分：1
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2177e8d3adb15fabed33322ffd32afc8394a
an investigation on use of chaotic sequence in DS-CDMA. The DS-CDMA systems offer
physical layer security without the need for a significant increase in computation or power requirements. Nowadays, DSCDMA
has been used widely. These systems suffers from multiple access interference because of other users transmitting
in the cell, channel inter symbol interference and additive white Gaussian noise. Codes have an effective role in DSCDMA
system, so M-sequences; gold sequences have been used as spreading codes in DS-CDMA. These sequences by
shift registers and periodic in nature are developed. However, these sequences are not enough and also limit the security.
This paper presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system.
These sequences by chaotic maps are generated.
- 2019-03-13 22:41:27下载
- 积分：1
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A2
说明： 有限元Matlab程序，两网格并行程序，Morley程序(Finite Element Matlab program, the two grid parallel program, Morley program)
- 2010-12-29 21:10:38下载
- 积分：1
