Description: This source code simulates UWB based wireless Communication system which transmits color image over wireless medium.
Modulation type: Pulse position modulation
Pulse: second derivative of a Gaussian pulse Channel: AWGN
Image: lib.jpg-This source code simulates UWB based wireless Communication system which transmits color image over wireless medium.
Modulation type: Pulse position modulation
Pulse: second derivative of a Gaussian pulse Channel: AWGN
Image: lib.jpg Platform: |
Size: 83968 |
Author: |
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Description: LPF Rectangular PAM Communication System.
Pulse-amplitude modulation is widely used in baseband transmission of digital data, with non-baseband applications having been largely superseded by pulse-code modulation, and, more recently, by pulse-position modulation Platform: |
Size: 8192 |
Author:Griffin Wright |
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Description: 分析了在超宽带通信系统中的扩频干扰，并用两种通用的调制技术实现了对提出的抗干扰方法的仿真-he ultra wideband (UWB) interference to direct
sequence spread spectrum (DSSS) receiver is analyzed. Two
popular UWB modulation schemes, the time hopping pulse
position modulation (TH-PPM) and time hopping pulse
amplitude modulation (TH-PAM), are considered. The pulse
repetition rate (T’RR) of UWB signal and the freqnency hand of
the DSSS play the primary roles in the BER performance of the
DSSS receiver in the presence of UWB interference. The UWB
signal parameters raising the interference to DSSS receiver are
discussed. The characteristics of an aggregation of multiple
UWB signals are somehow different from that of a single UWB
device, especially for the TB-PPM scheme, where discrete
spectral lines maybe exist in the band of DSSS receiver. The
system parameters of TH-PPM such as the modulaiion index
and maximum shift incurred hy the time hopping code
determine the amplitude of the discret Platform: |
Size: 283648 |
Author:张洋 |
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Description: PCM是Pulse code modulation的缩写，它是对波形最直接的编码方式。它在音频中的地位可能和BMP在图片中的地位有点类似吧-Pulse code modulation PCM is the abbreviation, it is the most direct waveform coding. It' s position in the audio may be the status of BMP in the picture is somewhat similar to it Platform: |
Size: 33792 |
Author:pxxxb |
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Description: Abstruct- We describe novel interleaver and deinterleaver
architectures that support bandwidth efficient memory access for
decoders of turbo-like codes that are used in conjunction with
high order modulations. The presentation focuses on a decoder
for serially concatenated pulse-position modulation (SCPPM),
which is a forward-error-correction code designed by NASA to
support laser communications from Mars at more than 50 megabits-
per-second (Mbps). For 64-ary PPM, the new architectures
effectively triple the fan-in of the interleaver and fan-out of the
deinterleaver, enabling parallelization that doubles the overall
throughput. The techniques described here can be readily modified
for other PPM orders. Platform: |
Size: 891904 |
Author:sasoou |
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Description: 模拟电位器
H–2
H.2
怎样使用高速计数器
H–6
H.3
自由通信口模式的简单应用
H–10
H.4
处理脉宽调制
H–13
H.5
可逆电动机起动器电路――适用于改变三相交流感应电动机旋转方向
H–16
H.6
步执行顺序（事件鼓定时器）
H–19
H.7
S7-200用自由通信口模式和并行打印机连接
H–23
H.8
通过自由通信口模式接受条形码阅读器的信息
H–27
H.9
集成脉冲输出通过步进电机进行定位控制
H–31
H.10
SIMATIC S7-221通过自由通信口模式控制贺氏（Hayes）调制解调器
H–37
H.11
几台SIMATIC S7-200 PLC使用自由通信口模式连接在一个远程I/O网络上
H–43
H.12
S7-224与SIMOVERT电机驱动器之间的自由通信口通信接口
H-54
H.13
用S7-200 CPU 224 DC/DC/DC进行定位控制，并具有位置监视和位置校正
H-64
H.14
用S7-200实现PID控制
H-80
H.15
模拟量输入的处理
H-92
H.16
S7-200与PC之间的连接：从Windows应用程序中读数据
H-98-Analog potentiometers
H-2
H.2
How to use high-speed counter
H-6
H.3
Simple application of the Freeport mode
H-10
H.4
Dealing with pulse width modulation
H-13
H.5
Reversible motor starter circuit- to change the direction of rotation of three-phase AC induction motor
H-16
H.6
Step sequence (drum event timer)
H-19
H.7
S7-200 Freeport mode and parallel printer connection
H-23
H.8
Freeport mode to accept the bar code reader
H-27
H.9
Integrated pulse output by the stepper motor positioning control
H-31
H.10
SIMATIC S7-221 modem Hayes (Hayes) Freeport mode to control
H-37
H.11
Of SIMATIC S7-200 PLC to use the Freeport mode to connect a remote I/O network
H-43
H.12
Freeport communication interface between the S7-224 and SIMOVERT motor drive
H-54
H.13
S7-200 CPU 224 the DC/DC/DC positioning control and position monitoring and position correction
H-64
H.14
S7-200 PID control
H-80
H.15
Processing of analog input
H-92
H.16
Connection between the S7-200 Platform: |
Size: 779264 |
Author:李明 |
Hits:
Description: 模拟电位器
H–2
H.2
怎样使用高速计数器
H–6
H.3
自由通信口模式的简单应用
H–10
H.4
处理脉宽调制
H–13
H.5
可逆电动机起动器电路――适用于改变三相交流感应电动机旋转方向
H–16
H.6
步执行顺序（事件鼓定时器）
H–19
H.7
S7-200用自由通信口模式和并行打印机连接
H–23
H.8
通过自由通信口模式接受条形码阅读器的信息
H–27
H.9
集成脉冲输出通过步进电机进行定位控制
H–31
H.10
SIMATIC S7-221通过自由通信口模式控制贺氏（Hayes）调制解调器
H–37
H.11
几台SIMATIC S7-200 PLC使用自由通信口模式连接在一个远程I/O网络上
H–43
H.12
S7-224与SIMOVERT电机驱动器之间的自由通信口通信接口
H-54
H.13
用S7-200 CPU 224 DC/DC/DC进行定位控制，并具有位置监视和位置校正
H-64
H.14
用S7-200实现PID控制
H-80
H.15
模拟量输入的处理
H-92
H.16
S7-200与PC之间的连接：从Windows应用程序中读数据
H-98-Analog potentiometers
H-2
H.2
How to use high-speed counter
H-6
H.3
Simple application of the Freeport mode
H-10
H.4
Dealing with pulse width modulation
H-13
H.5
Reversible motor starter circuit- to change the direction of rotation of three-phase AC induction motor
H-16
H.6
Step sequence (drum event timer)
H-19
H.7
S7-200 Freeport mode and parallel printer connection
H-23
H.8
Freeport mode to accept the bar code reader
H-27
H.9
Integrated pulse output by the stepper motor positioning control
H-31
H.10
SIMATIC S7-221 modem Hayes (Hayes) Freeport mode to control
H-37
H.11
Of SIMATIC S7-200 PLC to use the Freeport mode to connect a remote I/O network
H-43
H.12
Freeport communication interface between the S7-224 and SIMOVERT motor drive
H-54
H.13
S7-200 CPU 224 the DC/DC/DC positioning control and position monitoring and position correction
H-64
H.14
S7-200 PID control
H-80
H.15
Processing of analog input
H-92
H.16
Connection between the S7-200 Platform: |
Size: 784384 |
Author:李明 |
Hits:
Search - pulse position modulation code