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Description: ZPAV (H.265) is audio-visual codec protocol, very different from H264/MPEG4,
ZPAV (H.265) basic algorithm is wavelets, SPIHT, BSW, MMW, ......
ZPAV (H.265) basic algorithm :
1, analysis/synthesis : wavelets
2, denoise : GCV (generalized cross validation)
3, bit-rate controller : entropic bit-rate controller
4, quantizer : entropic quantizer
5, DC/AC : NDLD (near-domain lower dimension)
6, MV/QP codec : BSW (generalized (broad-sense) wavelets)
7, bitplanes codec : SPIHT, EZW,
MMW (mathematical morphological wavelets),
BPLD (bitplanes lower dimension)
8, bitstreams codec : arithmetic, entropy
9, motion estimate : MBOD (macro block optimal decision),
MVP (motion vector prediction)
A, motion search : EPZS, diamond(normal, advance, small), square
B, post process : low_pass, default, dering filter .
Platform: |
Size: 3015133 |
Author: 彭珍 |
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Description: MONOGRAM AC3 Encoder 0.9-for some time I was unable to find a decent free AC-3 encoder DirectShow filter so I’ve decided to make one. I’ve extracted the AC-3 encoder source from libavcodec (ffmpeg project) and wrapped it into a simple filter. The filter is released under the GNU LGPL license. It also takes advantage of a CBaseAudioEncoder base class which I intend to describe soon in a nice tutorial
Platform: |
Size: 41984 |
Author: 陈耀 |
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Description: dimmer for drive ac motor or another ac tools.
Platform: |
Size: 33792 |
Author: javad |
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Description: msp430 实验代码 1,MSP430开发基础
2，键盘设计
3，数码管显示电路设计
4，液晶模块接口
5，MSP430 CRC
6，中文输入法
7，数据压缩算法
8，FIR滤波
9，FFT算法
10，波特率自动识别
11,串行存储
12；NAND flash 接口
13；A/ D，TLV2541
14；DA DAC8830
15；ADS1241
16；温度 TMP100
17；定时器 DAC
18；数据采集
19；交流电压测量
20；车速测量
21；DS1820
22；DS1302
23；基于BQ26500温度检测系统
24；红外传输系统
25；pc通信
26；无线MODEM
27；楼宇对讲系统
28；DSP HPI接口
29；无线传输模块
30；步进电机控制
31；can通信系统-msp430 test code 1, MSP430 Development Foundation 2, keyboard 3, the digital display circuit 4, the LCD module interface 5, MSP430 CRC 6, 7, Chinese input methods, data compression algorithm 8, FIR filter 9, FFT algorithm for 10, Porter automatic identification rate of 11, serial memory 12 NAND flash interface, 13 A/D, TLV2541 14 DA DAC8830 15 ADS1241 16 temperature TMP100 17 timer DAC 18 data collection 19 AC voltage measurement 20 speed measurement 21 DS1820 22 DS1302 23 temperature detection system based on BQ26500 24 infrared transmission system 25 pc communication 26 wireless MODEM 27 building intercom system 28 DSP HPI interface, 29 wireless transmission module 30 stepper motor control 31 can Communication Systems
Platform: |
Size: 247808 |
Author: teamo38 |
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Description: system has been virtually created in order to actualize the conversion from DC to AC.
The basic components of this are a stabilizer a 6 IGBTs 3 arm bridge, and a Filter LC
and a 10KW load. At third, the control circuit, is discussed and has been designed in
Simulink, results to sinusoidal characteristics which are a priory defined. The main
Platform: |
Size: 498688 |
Author: mimo |
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Description: This model demonstrates a DC-AC converter.
3 leg Mosfet operated inverter is constructed .
Can be used to demonstrate the relationship of input DC, output voltage, modulation index , filter selection and switching frequency.
3rd harmonic injection features
Platform: |
Size: 15360 |
Author: ramin |
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Description: 45IT.COM多用户留言系统安装包
系统环境
1、可用的httpd服务器（如 Apache、IIS、Nginx 等）
2、支持ASP即可
3、采用ACCESS数据库
开放程度：完全开放免费
安装方法
请参考下面的步骤进行集成包的安装：
1. 通过ftp工具，所有文件上传。无需修改，默认即可使用
2. 在浏览器中访问: http://本程序访问URL/即可
3. 管理员帐号admin 密码123456
4. 配置文件dbpath.asp，可修改数据库路径，和数据访问方式，如asp或者mdb等。
5.管理文件admin.asp，管理方式http://本程序访问URL/dmin.asp
6.如需过滤设置，见addsave45itcom.asp文件
7.数据库文件book.asp，如需修改AC数据库将文件扩展名改为mdb即可。-45IT.COM multi user message system installation package
System environment
1, available httpd server (such as Apache, IIS, Nginx, etc.)
2, support ASP
3, the use of ACCESS
Open degree: fully open for free
Installation method
Please refer to the following steps for the installation of integrated packages:
1 through the FTP tool, all file upload. Without modification, you can use the default
2 in the browser to access: http:// this program to visit URL/
3 administrator account admin password 123456
4 configuration file dbpath.asp, can modify the path, and data access methods, such as ASP or MDB, etc..
5 management file admin.asp, management mode http:// this program access URL/dmin.asp
6 if you need to filter settings, see the addsave45itcom.asp file
7 file book.asp, such as the need to modify the AC file extension to mdb.
Platform: |
Size: 851968 |
Author: bmpudn4 |
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Description: pwm的实现
PWM的一个优点是从处理器到被控系统信号都是数字形式的，在进行数模转换。可将噪声影响降到最低(可以话跟电脑一样}。噪声只有在强到足以将逻辑1改变为逻辑0或将逻辑0改变为逻辑1时，也才能对数字信号产生影响。
对噪声抵抗能力的增强是PWM相对于模拟控制的另外一个优点，而且这也是在某些时候将PWM用于通信的主要原因。从模拟信号转向PWM可以极大地延长通信距离。在接收端，通过适当的RC或LC网络可以滤除调制高频方波并将信号还原为模拟形式。
PWM控制技术一直是变频技术的核心技术之一。1964年A.Schonung和H.stemmler首先提出把这项通讯技术应用到交流传动中，从此为交流传动的推广应用开辟了新的局面。-The realization of the PWM
An advantage of PWM signals the processor to be control system is digital form, in the d/a conversion.Can minimize noise effects (noise can words like computer}. Only in a logic 1 is strong enough to change to logic 0 or logic 0 for the logic 1, also can affect the digital signal.
To the noise resistance ability enhancement is PWM another advantage compared with the simulation control, and it s will be the main cause of PWM are used for communication in some time.From analog signal to the PWM can greatly extend the communication distance.At the receiving end, through proper RC or LC networks can filter out high frequency square wave modulation and signal to analog form.
PWM control technology has been one of the core technology of frequency conversion technology.1964 A.S chonung and H.s temmler first proposed the application of the communication technology to the ac drive, this has opened up a new situation for the application of ac drive.
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Size: 1024 |
Author: 王志方 |
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Description: 不控整流仿真
1.在MATLAB/Simulink中搭建单相桥式不控整流电路仿真模
型；
2.仿真分析空载的直流电压波形、交流电流波形；
3.仿真分析带载的直流电压波形、交流电流波形；
4.选择合适的滤波电感电容参数，观察分析其对直流电压的
抑制作用。（先完成2、3，再进行第4步）
仿真参数：交流电压有效值220V，频率50Hz，R=50Ω(Uncontrolled rectification simulation
1. build a simulation module of single phase bridge type uncontrolled rectifier circuit in MATLAB/Simulink.
Type;
2. simulation and analysis of no load DC voltage waveform and AC current waveform;
3. simulation and analysis of DC voltage waveform and AC current waveform are carried out.
4. select suitable filter inductance and capacitance parameters to observe and analyze the DC voltage.
Inhibition. (2, 3, fourth steps)
Simulation parameters: AC voltage effective value 220V, frequency 50Hz, R=50 ohm)
Platform: |
Size: 15360 |
Author: ljzz |
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