Perl and XML XML is a text-based markup language that has taken the programming world by storm. More powerful than HTML yet less demanding than SGML, XML has proven itself to be flexible and resilient. XML is the perfect tool for formatting documents with even the smallest bit of complexity, from Web pages to legal contracts to books. However, XML has also proven itself to be indispensable for organizing and conveying other sorts of data as well, thus its central role in web services like SOAP and XML-RPC. As the Perl programming language was tailor-
標簽： programming text-based XML language
上傳時間： 2014-01-07
上傳用戶：jichenxi0730
Process a binary data stream using a communication system that consists of a baseband modulator, channel, and demodulator. Compute the system s bit error rate (BER). Also, display the transmitted and received signals in a scatter plot.
標簽： communication modulator baseband consists
上傳時間： 2017-01-08
上傳用戶：ardager
8單徑瑞利信道中的四發四收V-BLAST： (1) 請設計一種具體的導引輔助的信道估計方法，用Simulink進行仿真，測量16QPSK調制時的誤碼率性能。畫出比特信噪比與信道估計均方誤差的關系曲線，畫出比特信噪比與誤碼率的關系曲線。 (2) 計算所設計方案的頻譜效率是多少，單位為bit/Hz/s。
上傳時間： 2017-01-25
上傳用戶：ainimao
62256在單片機上的應用,C語言源碼,Keil uVision3工程文件,附原理圖及說明學習文檔 62256簡介： 62系列是最常用的單片機系統擴展RAM元器件，其類型有6216、6232、6264、62128、62256或62512等多種，62后面的數字表示此元器件中可以存儲的位(單位：千bit)，我們通常的說法是將此值除以8，比如62256將256除以8，我們一般稱之為32K的RAM。 如果學習過二進制就可以知道，區分兩個字節需要一根地址線就可以：0或者1；而區分四個字節需要2根地址線；區分八個字節需要三根地址線…..以此類推，我們可以計算出要區分32K的RAM區，需要15根地址線，也就是器件上面的A0-A14管腳用于確定唯一的一個字節內容。 我們現在學習的51單片機是8位的，所以必須用兩個IO口來聯接這個RAM器件，通常我們用P0（低字節）和P2（高字節）兩個端口來確定此器件的地址，而P0口是51單片機標準的總線口，是地址線和數據線復用的，所以與62256聯接時需要加一片鎖存器來鎖存地址。即先將地址送到鎖存器（通常用74HC373）中，然后P0口空閑下來后開始接收或發送數據至62256。
上傳時間： 2017-01-27
上傳用戶：asdkin
PC與單片機雙向通訊智能溫控程序 #include <AT89X51.H> #include <intrins.h> #define Key_UP P1_0 #define Key_DOWN P1_1 #define Key_SET P1_2 #define RelayOutPort P2_0 #define LEDPort P0 #define DELPort P2_1 #define LEDTwoC P3_6 #define LEDThreeC P3_7 #define TMPort P2_7 #define INBUF_LEN 5 //數據長度 unsigned char inbuf1[INBUF_LEN]={ 0 , 0 , 0 , 0 , 0 } //發送緩沖區 unsigned char inbuf2[50] //接收緩沖區 unsigned char count3 void init_serialcomm( void ) { SCON = 0x50 //SCON: serail mode 1, 8-bit UART, enable ucvr TMOD |= 0x20 //TMOD: timer 1, mode 2, 8-bit reload PCON |= 0x80 //SMOD=1 TH1 = 0xFA //Baud:4800 fosc=11.0592MHz IE |= 0x90 //Enable Serial Interrupt TR1 = 1 // timer 1 run } //向串口發送一個字符 void send_char_com( unsigned char ch) { SBUF=ch while (TI== 0 ) TI= 0
標簽： include intrins define Key_UP
上傳時間： 2014-11-29
上傳用戶：風之驕子
VB遙控播放器紅外遙控解碼 #include <regX52.h> #define c(x) (x*110592/120000) sbit Ir_Pin=P3^2 sbit beep=P2^1 //sbit RELAY=P2^0 #define INBUF_LEN 4 //數據長度 unsigned char inbuf1[INBUF_LEN]={ 0 , 0 , 0 , 0 } //發送緩沖區 unsigned char inbuf2[50] //接收緩沖區 unsigned char count3 void init_serialcomm( void ) { SCON = 0x50 //SCON: serail mode 1, 8-bit UART, enable ucvr T2CON=0x30 TH2=0x00 TL2=0x00 RCAP2H=0xFF RCAP2L=0xDC TR2=1 } //向串口發送一個字符 void send_char_com( unsigned char ch) { SBUF=ch while (TI== 0 ) TI= 0
標簽： include 110592 120000 define
上傳時間： 2013-12-21
上傳用戶：yph853211
DES加密算法，使用64位(bit)的數據進行加密和解密的
上傳時間： 2013-12-25
上傳用戶：開懷常笑
The software is capable to simulate space time code [1] for QPSK modulation using different number of state. Examples of generator matrix up to 256 stetes are provided. Variable signal to noise ratio (SNR) might be applied to produce bit error rate (BER) or frame error rate (FER) curves.
標簽： modulation different software simulate
上傳時間： 2014-01-22
上傳用戶：qq1604324866
ECE345, Visual-to-Audio Electronic Travel Aid Code for TM320C54x (v2a.asm) download This project involves the design and implementation of a audio synthesis device that converts moving images into audio signals. The system is built on a TM320C54x DSP with interface to an IMAQ camera module via the serial port on a PC. Brief description: A LabVIEW VI acquires an image from the IMAQ camera module. It quantizes the image into a 5x5, 3-bit image, and sends the data to the TM320C54x DSP via a serial port. The TM320C54x DSP constructs a 64-tap FIR by combining a series of 64-tap head related transfer functions (HRTF) according to the incoming data, and then filters an input audio signal with this FIR filter, in effect creating a correspondence between the filtered signal and the original image.
標簽： Visual-to-Audio Electronic download project
上傳時間： 2017-02-01
上傳用戶：笨小孩
C51源程序集錦 This a demo program showing a way to perform simultaneous RS-232 transmit and receive using only one hardware timer. The transmit and receive routines divide each bit time into 4 slices to allow synchronizing to incoming data that may be out of synch with outgoing data.
標簽： simultaneous transmit program perform
上傳時間： 2017-02-08
上傳用戶：yangbo69
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