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  • 基于多尺度字典的图像超分辨率重建

    Reconstruction- and example-based super-resolution (SR) methods are promising for restoring a high-resolution (HR) image from low-resolution (LR) image(s). Under large magnification, reconstruction-based methods usually fail to hallucinate visual details while example-based methods sometimes introduce unexpected details. Given a generic LR image, to reconstruct a photo-realistic SR image and to suppress artifacts in the reconstructed SR image, we introduce a multi-scale dictionary to a novel SR method that simultaneously integrates local and non-local priors. The local prior suppresses artifacts by using steering kernel regression to predict the target pixel from a small local area. The non-local prior enriches visual details by taking a weighted average of a large neighborhood as an estimate of the target pixel. Essentially, these two priors are complementary to each other. Experimental results demonstrate that the proposed method can produce high quality SR recovery both quantitatively and perceptually.

    标签: Super-resolution Multi-scale Dictionary Single Image for

    上传时间: 2019-03-28

    上传用户:fullout

  • 电台维修模拟训练系统设计方法研究

    Methods for designing a maintenance simulation training system for certain kind of radio are introduced. Fault modeling method is used to establish the fault database. The system sets up some typical failures, follow the prompts trainers can locate the fault source and confirm the type to accomplish corresponding fault maintenance training. A training evaluation means is given to examining and evaluating the training performance. The system intuitively and vividly shows the fault maintenance process, it can not only be used in teaching, but also in daily maintenance training to efficiently improve the maintenance operation level. Graphical programming language LabVIEW is used to develop the system platform.

    标签: 电台维修 模拟训练 方法研究 系统设计

    上传时间: 2013-11-19

    上传用户:3294322651

  • 音频数模转换器DAC抖动的灵敏度分析

    Abstract: This application note describes how sampling clock jitter (time interval error or "TIE jitter") affectsthe performance of delta-sigma digital-to-analog converters (DACs). New insights explain the importanceof separately specifying low-frequency (< 2x passband frequency) and high-frequency or wideband (> 2xpassband frequency) jitter tolerance in these devices. The article also provides an application example ofa simple highly jittered cycle-skipped sampling clock and describes a method for generating a properbroadband jittered clock. The document then goes on to compare Maxim's audio DAC jitter tolerance tocompetitor audio DACs. Maxim's exceptionally high jitter tolerance allows very simple and low-cost sampleclock implementations.

    标签: DAC 音频 数模转换器 抖动

    上传时间: 2013-10-25

    上传用户:banyou

  • 简单、高效USB电源管理IC解决方案

      Linear Technology offers a variety of devices that simplifyconverting power from a USB cable, but the LTC®3455represents the highest level of functional integration yet. The LTC3455 seamlessly manages power flowbetween an AC adapter, USB cable and Li-ion battery,while complying with USB power standards, all from a4mm × 4mm QFN package. In addtion, two high efficiencysynchronous buck converters generate low voltage railswhich most USB-powered peripherals require. TheLTC3455 also provides power-on reset signals for themicroprocessor, a Hot SwapTM output for poweringmemory cards as well as an uncommitted gain blocksuitable for use as a low-battery comparator or an LDOcontroller. The PCB real estate required for the entire USBpower control circuit and two DC/DC converters is only225mm2.

    标签: USB 电源管理IC 方案

    上传时间: 2013-11-02

    上传用户:名爵少年

  • LCD12864显示汉字和数字(程序和电路)

    附件为:LCD12864显示汉字和数字的程序与电路 /*  自定义延时子函数 */ void delayms(uchar z) {   int x,y;   for(x=z;x>0;x--)      for(y=110;y>0;y--); } /*      判断LCD忙信号状态 */ void buys() {   int dat;   RW=1;   RS=0;   do     {           P0=0x00;          E=1;    dat=P0;    E=0;    dat=0x80 & dat;   } while(!(dat==0x00)); } /*      LCD写指令函数 */ void w_com(uchar com) {   //buys();   RW=0;   RS=0;   E=1;   P0=com;   E=0; }  /*      LCD写数据函数 */ void w_date(uchar date) {   //buys();   RW=0;   RS=1;   E=1;   P0=date;   E=0; } /*     LCD选屏函数 */ void select_screen(uchar screen) {     switch(screen)     {         case 0:     //选择全屏                 CS1=0;        CS2=0;           break;      case 1:     //选择左屏                 CS1=0;        CS2=1;           break;                          case 2:     //选择右屏                 CS1=1;        CS2=0;           break;    /*  case 3:     //选择右屏                 CS1=1;          CS2=1;               break;    */     }           } /*   LCDx向上滚屏显示 */ void lcd_rol() {     int x;     for(x=0;x<64;x++)        {       select_screen(0);     w_com(0xc0+x);       delayms(500);     } } /*     LCD清屏函数:清屏从第一页的第一列开始,总共8页,64列 */ void clear_screen(screen) {   int x,y;   select_screen(screen);     //screen:0-选择全屏,1-选择左半屏,2-选择右半屏   for(x=0xb8;x<0xc0;x++)   //从0xb8-0xbf,共8页      {    w_com(x);    w_com(0x40);   //列的初始地址是0x40    for(y=0;y<64;y++)       {            w_date(0x00);              }       }    } /*   LCD显示汉字字库函数 */ void lcd_display_hanzi(uchar screen,uchar page,uchar col,uint mun) {  //screen:选择屏幕参数,page:选择页参数0-3,col:选择列参数0-3,mun:显示第几个汉字的参数       int a;    mun=mun*32;    select_screen(screen);    w_com(0xb8+(page*2));    w_com(0x40+(col*16));    for ( a=0;a<16;a++)       {        w_date(hanzi[mun++]);       }    w_com(0xb8+(page*2)+1);    w_com(0x40+(col*16));    for ( a=0;a<16;a++)       {        w_date(hanzi[mun++]);       } }  /*   LCD显示字符字库函数 */ void lcd_display_zifuk(uchar screen,uchar page,uchar col,uchar mun) {  //screen:选择屏幕参数,page:选择页参数0-3,col:选择列参数0-7,mun:显示第几个汉字的参数       int a;    mun=mun*16;    select_screen(screen);    w_com(0xb8+(page*2));    w_com(0x40+(col*8));    for ( a=0;a<8;a++)       {        w_date(zifu[mun++]);       }    w_com(0xb8+(page*2)+1);    w_com(0x40+(col*8));    for ( a=0;a<8;a++)       {        w_date(zifu[mun++]);       } } /*   LCD显示数字字库函数 */ void lcd_display_shuzi(uchar screen,uchar page,uchar col,uchar mun) {  //screen:选择屏幕参数,page:选择页参数0-3,col:选择列参数0-7,mun:显示第几个汉字的参数       int a;    mun=mun*16;    select_screen(screen);    w_com(0xb8+(page*2));    w_com(0x40+(col*8));    for ( a=0;a<8;a++)       {        w_date(shuzi[mun++]);       }    w_com(0xb8+(page*2)+1);    w_com(0x40+(col*8));    for ( a=0;a<8;a++)       {        w_date(shuzi[mun++]);       } } /*   LCD初始化函数 */ void lcd_init() {   w_com(0x3f);   //LCD开显示   w_com(0xc0);   //LCD行初始地址,共64行   w_com(0xb8);   //LCD页初始地址,共8页   w_com(0x40);   //LCD列初始地址,共64列     } /*   LCD显示主函数 */ void main() {   //第一行       int x;    lcd_init();     //LCD初始化    clear_screen(0);    //LCD清屏幕    lcd_display_shuzi(1,0,4,5);    //LCD显示数字    lcd_display_shuzi(1,0,5,1);    //LCD显示数字       lcd_display_hanzi(1,0,3,0);    //LCD显示汉字    lcd_display_hanzi(2,0,0,1);    //LCD显示汉字    //LCD字符汉字    lcd_display_hanzi(2,0,1,2);    //LCD显示汉字   //第二行     lcd_display_zifuk(1,1,2,0);    //LCD显示字符    lcd_display_zifuk(1,1,3,0);    //LCD显示字符    lcd_display_zifuk(1,1,4,0);    //LCD显示字符    lcd_display_zifuk(1,1,5,4);    //LCD显示字符    lcd_display_shuzi(1,1,6,8);    //LCD显示字符    lcd_display_shuzi(1,1,7,9);    //LCD显示字符    lcd_display_shuzi(2,1,0,5);    //LCD显示字符    lcd_display_shuzi(2,1,1,1);    //LCD显示字符    lcd_display_zifuk(2,1,2,4);    lcd_display_zifuk(2,1,3,1);    lcd_display_zifuk(2,1,4,2);    lcd_display_zifuk(2,1,5,3);   //第三行    for(x=0;x<4;x++)       {      lcd_display_hanzi(1,2,x,3+x);    //LCD显示汉字    }      for(x=0;x<4;x++)       {      lcd_display_hanzi(2,2,x,7+x);    //LCD显示汉字    }   //第四行     for(x=0;x<4;x++)       {      lcd_display_zifuk(1,3,x,5+x);    //LCD显示汉字    }     lcd_display_shuzi(1,3,4,7);     lcd_display_shuzi(1,3,5,5);     lcd_display_shuzi(1,3,6,5);     lcd_display_zifuk(1,3,7,9);     lcd_display_shuzi(2,3,0,8);     lcd_display_shuzi(2,3,1,9);     lcd_display_shuzi(2,3,2,9);     lcd_display_shuzi(2,3,3,5);     lcd_display_shuzi(2,3,4,6);     lcd_display_shuzi(2,3,5,8);     lcd_display_shuzi(2,3,6,9);     lcd_display_shuzi(2,3,7,2);        while(1);    /* while(1)     {     //  LCD向上滚屏显示        lcd_rol();     }    */ }

    标签: 12864 LCD 汉字 数字

    上传时间: 2013-11-08

    上传用户:aeiouetla

  • 对带有uPSD3234A的DK3200的USB演示

    The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 Microcontroller Core. Of these, the μPSD3234A and μPSD3254A are notable for having a complete implementation of the USB hardware directly on the chip, complying with the Universal Serial Bus Specification, Revision 1.1.This application note describes a demonstration program that has been written for the DK3200 hardware demonstration kit (incorporating a μPSD3234A device). It gives the user an idea of how simple it is to work with the device, using the HID class as a ready-made device driver for the USB connection.

    标签: 3234A uPSD 3234 3200

    上传时间: 2014-04-03

    上传用户:lizhizheng88

  • 基于(英蓓特)STM32V100的串口程序

    This example provides a description of how  to use the USART with hardware flowcontrol and communicate with the Hyperterminal.First, the USART2 sends the TxBuffer to the hyperterminal and still waiting fora string from the hyperterminal that you must enter which must end by '\r'character (keypad ENTER button). Each byte received is retransmitted to theHyperterminal. The string that you have entered is stored in the RxBuffer array. The receivebuffer have a RxBufferSize bytes as maximum. The USART2 is configured as follow:    - BaudRate = 115200 baud      - Word Length = 8 Bits    - One Stop Bit    - No parity    - Hardware flow control enabled (RTS and CTS signals)    - Receive and transmit enabled    - USART Clock disabled    - USART CPOL: Clock is active low    - USART CPHA: Data is captured on the second edge     - USART LastBit: The clock pulse of the last data bit is not output to                      the SCLK pin

    标签: V100 STM 100 32V

    上传时间: 2013-10-31

    上传用户:yy_cn

  • 用CY7C63723设计的鼠标固件程序 chip.c - include file that defines CY7C63723 constants - combi.c - main sourc

    用CY7C63723设计的鼠标固件程序 chip.c - include file that defines CY7C63723 constants - combi.c - main source file - combi.hex - Intel hex file for programming a CY7C63723 microcontroller - combi.lst - output listing from c-compiler for use with the CYDB debugger - macros.h - defines macros used in combi.c - ps2defs.h - defines PS/2 interface constants - usb_desc.h - defines the USB descriptors - usbdefs.h - defines USB interface constants

    标签: C63723 63723 CY7 constants

    上传时间: 2014-02-15

    上传用户:aappkkee

  • These routines transmit and receive serial data using two general * I/O pins, in 8 bit, No parity,

    These routines transmit and receive serial data using two general * I/O pins, in 8 bit, No parity, 1 stop bit format. They are useful * for performing serial I/O on 8051 derivatives not having an * internal UART, or for implementing a second serial channel.

    标签: routines transmit receive general

    上传时间: 2015-05-22

    上传用户:firstbyte

  • Example to support XML files using MSXML. ========================================= XML (Extensi

    Example to support XML files using MSXML. ========================================= XML (Extensible Markup Language) is a commonly used basis for representing a huge range of structured data file formats. The specification is maintained by the World Wide Web Consortium (W3C?. This plugin is intended as an example of how XML data can be read with a DataPlugin. You can adjust it to meet the needs of your own XML file format. After installing the URI file (double click on it), you can find the VBScript file located at "C:\Program Files\National Instruments\Shared\USI\plugins\DataPlugins\XML Example" You can make changes to this file to read your specific XML file.

    标签: XML Example support Extensi

    上传时间: 2016-01-03

    上传用户:cooran