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数字水印
- 对原始信号做DCT的算法：Cox 和Piva 等人提出的DCT技术的经典之作。Cox利用随机数发生器产生标准正态序列作为水印信息对图像进行整体DCT变换后，选取除去DC系数之外部分较低频率系数叠加水印信息 Piva则修改整幅图像的中频部分。对原始信号分块后，再作DCT的算法：Hsu和Wu 把图像进行8*8分块，将一个二进制序列作为水印放入DCT的中频区；有些学者则计算整个图像的DCT，把一个实数序列嵌入DCT的中频系数上。选择中频区的好处是一方面尽量减少嵌入信息对图像主观视觉的影响；同时，尽量避
EPM240_SCH_and_program.rar
- EPM240 cpld 原理图+程序。 Verilog HDL语言。 程序有正弦波发生器，ADC0804直流采样和显示，汉字滚动，交通灯，键盘，显示程序，计数器等等。,Schematic diagram+ EPM240 cpld procedures. Sine wave generator procedures, ADC0804 DC sampling and showed that Chinese scroll, traffic lights, keyboard, display pro
com_trig
- DSP2812控制无刷直流电机 无传感器直流无刷电机驱动器的变换触发发生器单元-DSP2812 sensorless control of brushless DC motor drive DC brushless motor generator unit change trigger
GPS-timing-of-IRIG-B
- 用GPS校时的IRIG-B(DC)时间码产生器设计,一个PDF文档-With GPS timing of IRIG-B (DC) time code generator design, a PDF document
attachments
- The work presented in this thesis includes control system design, analysis and grid synchronization of a DFIG (doubly-fed induction generator) driven by a wind turbine using stator-voltage and stator-flux oriented frames. The DFIG is a special type o
equal-area-critirea
- E=input( enter the generator voltage: ) V=input( enter the infinite bus voltage: ) Gx=input( enter the reactance of generator: ) L1x=input( enter the line reactance: ) L2x=input( enter the line reactance: ) L3x=input( enter the line re
4.1.2
- 正弦余弦波形发生器，可以设置调节频率、幅度、相位、衰减、直流偏置等参数来产生相应波形。-Cosine Sine Waveform Generator, you can adjust the frequency settings, amplitude, phase, attenuation, such as DC bias to produce the corresponding waveform parameters.
triapf1
- 基于单位功率因数控制策略的三相全控整流。开关器件采用IGBT。PWM波形产生控制电路里使用的饱和限制模块，就是限制波形的幅度的，对输出直流电压幅值影响很大。-Based on the unity power factor control strategy of three-phase full-controlled rectifier. Switching device IGBT. PWM waveform generator control circuit in the saturation
89c51_c
- 有些实际应用中可能用的C原码,希望对大家有所帮助:(1)并行接口电压输出型DA转换器的控制(2)并行接口电流输出型DA转换器的控制(3)串行接口电压输出型DA转换器的控制(4)5I2C接口的AD及D A转换器的应用(5)基于AD9850的数字信号发生器(6)直流电机的开环控制(7)直流电机的闭环控制-Some practical applications may be used in the original C code, we want to help: (1) parallel port
hdb
- 数字基带信号的传输是数字通信系统的重要组成部分。在数字通信中，有些场合可不经过载波调制和解调过程，而对基带信号进行直接传输。采用AMI码的信号交替反转，有可能出现四连零现象，这不利于接收端的定时信号提取。而HDB3码因其无直流成份、低频成份少和连0个数最多不超过三个等特点，而对定时信号的恢复十分有利，并已成为CCITT协会推荐使用的基带传输码型之一。为此，本文利用VHDL语言对数据传输系统中的HDB3编码器进行了设计。 基于达到达到达到的信号发生器的源程序-Digital baseband
DSP_test_All
- DSP《滤波器，正弦波发生器，语音录放，指令实验，存储器，串行口，同步电机，步进电机，硬件中断，定时器，交通灯，直流电机，显示屏》-DSP（Filter, sine wave generator, voice recorders, instruction experiments, memory, serial port, synchronous motor, stepper motor, hardware interrupts, timers, traffic lights, DC machin
deadtime
- ，通过对87C196MC单 片机及波形发生器(WFG)的深入研究分析，提出 了一种通过调整死区时间生成DC／DC变换器 PWM控制脉冲的新方法。该-Through 87C196MC SCM and Waveform Generator (WFG) in-depth analysis, a dead time generated by adjusting the DC/DC converter PWM control pulse of the new method. That
datasheet_8
- In the first generation of the vehicle two diesel engines will provide energy to a generator transforming it to 700V on a DC bus. The DC bus provides enough energy for both propulsion and the auxiliary equipment. The now existing prototypes are
dcgen
- This simulation illustrates the current and voltage buildup in a self-excited dc shunt generator driven at constant speed.Examine the effects of: a) changing the residual voltage magnitude and polarity (vres) b) varying the field resistance Rf
dc_pgm
- dc pulse generator program
example-of-MCU
- 单片机的c语言教程：定时报警器，交通灯，密码锁，出租车计价器，频率可调的方波信号发生器，简易数字直流电压表。-Microcontroller c language tutorial: Timing alarm, traffic lights, locks, taxi meter, adjustable frequency square-wave generator, a simple digital DC voltmeter.
A-VSC-HVDC-Fuzzy-Controller-to-Damp-Oscillation-o
- The fast control capability of the VSC-HVDC and the process of area mode oscillations are analyzed. An auxiliary fuzzy logic controller designed in Matlab for the Voltage Source Converter based HVDC transmission system, VSC-HVDC, to improve t
555Multisim--Simulate
- 这是基于Multisim的555定时器的DC升压以及波形发生器，挺实用的-This is based on Multisim and waveform generator of 555 timer DC boost, very practical
cx
- 介绍了一种基于S3C2410微控制器的直流电机调速系统。文章在介绍PWM调速原理的基础上详细说明了S3C2410的PWM发生器的结构特点及其使用方法，并详细分析了调速相关程序及调速系统的总体设计，实现了直流电机的变速转动以及正反转的互换-A DC motor speed control system based on the S3C2410 microcontroller. Article on PWM speed control principle based on the detailed
Chip-development-project
- 单片机开发工程师案例分析与解析 1.定时报警器 2.交通灯 3.密码锁 4.出租车计价器 5.频率可调的方波信号发生器 6.简易数字直流电压表 7.简易频率计-Microcontroller development engineer case analysis and parsing. Timing alarm 2. Traffic lights. Combination lock. Taximeter 5. Frequency tunable square wave