将宽度为width位的并行输入数据按BIΦ-L码(曼彻斯特码)方式进行编码后串行输出，输出数据的宽度为(2*width)，BIΦ-L码是PCM码的一种，常用的PCM编码方式有：NRZ-L,BIΦ-L和BIΦ-M三种
上传时间： 2014-01-14
上传用户：大融融rr
SQL Server 2005 and the Microsoft Business Intelligence.chm 商业智能 BI学习书籍
标签： Intelligence Microsoft Business Server
上传时间： 2017-03-13
上传用户：JIUSHICHEN
JC2_VHD is a BI-directional 4-BIt Johnson counter with stop control
标签： BI-directional Johnson counter control
上传时间： 2017-03-23
上传用户：zgu489
SX28 Assembler Source to generate 2 phase referenced frequencies. Simulate a BI-phase clock source.
标签： frequencies referenced Assembler Simulate
上传时间： 2017-04-29
上传用户：baitouyu
ubuntu xue xi BI ji,xue xi linux de chu ji ru men zi liao......
上传时间： 2017-05-08
上传用户：hustfanenze
BI directional anchored/headed lists libraray
标签： directional anchored libraray headed
上传时间： 2013-12-25
上传用户：xcy122677
In this paper we present a classifier called BI-density twin support vector machines (BDTWSVMs) for data classification. In the training stage, BDTWSVMs first compute the relative density degrees for all training points using the intra-class graph whose weights are determined by a local scaling heuristic strategy, then optimize a pair of nonparallel hyperplanes through two smaller sized support vector machine (SVM)-typed problems. In the prediction stage, BDTWSVMs assign to the class label depending on the kernel density degree-based distances from each test point to the two hyperplanes. BDTWSVMs not only inherit good properties from twin support vector machines (TWSVMs) but also give good description for data points. The experimental results on toy as well as publicly available datasets indicate that BDTWSVMs compare favorably with classical SVMs and TWSVMs in terms of generalization
标签： recognition BI-density machines support pattern vector twin for
上传时间： 2019-06-09
上传用户：lyaiqing
Tableau：数据可视化之极速BI，书籍及释义
上传时间： 2020-05-11
上传用户：starnny
双向DC/DC变换器（BI-directionalDC/DCconverters）是能够根据需要调节能量双向传输的直流/直流变换器。随着科技的发展，双向DC/DC变换器的应用需求越来越多，正逐步应用到无轨电车、地铁、列车、电动车等直流电机驱动系统，直流不间断电源系统，航天电源等场合。一方面，双向DC/DC变换器为这些系统提供能量，另一方面，又使可回收能量反向给供电端充电，从而节约能量。 大多数双向DC/DC变换器采用复杂的辅助网络来实现软开关技术，本文所研究的Buck/Boost双向的DC/DC变换器从拓扑上解决器件软开关的问题；由于Buck/Boost双向DC/DC变换器的电流纹波较大，这会带来严重的电磁干扰，本文结合Buck/Boost双向DC/DC变换器拓扑与磁耦合技术使电感电流纹波减小；由于在同一频率下不同负载时电流纹波不同，本文在控制时根据负载改变PWM频率，从而使轻载时的电流纹波均较小。 本文所研究的双向DC/DC变换器采用DSP处理器进行控制，其原因在于：目前没有专门用于控制该Buck/Boost双向DC/DC变换器的控制芯片，而DSP具有多路的高分辨率PWM，通过对DSP寄存器的配置可以实现Buck/Boost双向DC/DC变换器的控制PWM；DSP具有多路高速的A/D转换接口，并可以通过配合PWM完成对反馈采样，具备一定的滤波功能。 本文所研究的数字双向DC/DC变换器实现了在Buck模式下功率MOSFET的零电压开通及零电压关断，电感电流的交迭使其电感输出端电流纹波明显变小，轻载时PWM频率的提升也使得电流纹波变小。
上传时间： 2013-06-08
上传用户：cy_ewhat
HIGH SPEED 8051 μC CORE - Pipe-lined Instruction Architecture; Executes 70% of Instructions in 1 or 2 System Clocks - Up to 25MIPS Throughput with 25MHz System Clock - 22 Vectored Interrupt Sources MEMORY - 4352 Bytes Internal Data RAM (256 + 4k) - 64k Bytes In-System Programmable FLASH Program Memory - External Parallel Data Memory Interface – up to 5Mbytes/sec DIGITAL PERIPHERALS - 64 Port I/O; All are 5V tolerant - Hardware SMBusTM (I2CTM Compatible), SPITM, and Two UART Serial Ports Available Concurrently - Programmable 16-BIt Counter/Timer Array with 5 Capture/Compare Modules - 5 General Purpose 16-BIt Counter/Timers - Dedicated Watch-Dog Timer; BI-directional Reset CLOCK SOURCES - Internal Programmable Oscillator: 2-to-16MHz - External Oscillator: Crystal, RC, C, or Clock - Real-Time Clock Mode using Timer 3 or PCA SUPPLY VOLTAGE ........................ 2.7V to 3.6V - Typical Operating Current: 10mA @ 25MHz - Multiple Power Saving Sleep and Shutdown Modes 100-Pin TQFP (64-Pin Version Available) Temperature Range: –40°C to +85°C
标签： C8051F020
上传时间： 2013-10-12
上传用户：lalalal
