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  • A Single-Chip Pulsoximeter Des

    This application report discusses the design of non-invasive optical plethysmographyalso called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). Thepulsoximeter consists of a peripheral probe combined with the MCU displaying theoxygen saturation and pulse rate on a LCD glass. The same se ...

    /dl/30710.html

    标签: Pulsoximeter Single-Chip Des

    上传时间: 2013-10-27

    上传用户:黑漆漆

  • 一种降低OFDM系统PAPR联合算法的研究

    选择映射法(SLM)和概率类算法都可以降低OFDM (Orthogonal Frequency Division Multiplexing)系统的PAPR(Peak to Average Power Ratio),传统SLM算法自身较为复杂,但由于其优良的性能,弃之可惜。研究表明,SLM算法和限幅类算法在性能上具有一定的互补性。任何一个算法未必能达到抑制PAPR的理想效果,在深入研究了两 ...

    /dl/32782.html

    标签: OFDM PAPR 法的研究

    上传时间: 2013-11-22

    上传用户:xinhaoshan2016

  • 微电脑型交流电流异常警报电表

    特点 精确度0.25%滿刻度 ±1位數 输入配线系统可任意选择 CT比可任意设定 具有异常电流值与异常次数记录保留功能 电流过高或过低检测可任意设定 报警继电器复归方式可任意設定 尺寸小,穩定性高 2.主要規格 辅助电源: AC110V&220V ±20%(50 or 60Hz) AC220V&440V ±20%(50 or 60Hz)(optional) 精确度: 0.2 ...

    /dl/34321.html

    标签: 微电脑 交流电流 警报电表

    上传时间: 2013-10-14

    上传用户:wanghui2438

  • XAPP708 -133MHz PCI-X到128MB DDR小型DIMM存储器桥

      The Virtex-4 features, such as the programmable IDELAY and built-in FIFO support, simplifythe bridging of a high-speed, PCI-X core to large amounts of DDR-SDRAM memory. Onechallenge is meeting the PCI-X target initial latency specification. PCI-X Protocol Addendum tothe PCI Local Bus Spec ...

    /dl/40099.html

    标签: PCI-X XAPP DIMM 708

    上传时间: 2013-11-24

    上传用户:18707733937

  • 磁芯电感器的谐波失真分析

    磁芯电感器的谐波失真分析 摘  要:简述了改进铁氧体软磁材料比损耗系数和磁滞常数ηB,从而降低总谐波失真THD的历史过程,分析了诸多因数对谐波测量的影响,提出了磁心性能的调控方向。 关键词:比损耗系数, 磁滞常数ηB ,直流偏置特性DC-Bias,总谐波失真THD  Analysis on THD of the fer rite co res u ...

    /dl/40429.html

    标签: 磁芯 电感器 谐波失真

    上传时间: 2013-12-15

    上传用户:天空说我在

  • LT5528 WCDMA ACPR和AltCPR测量

      ACPR (adjacent channel power ratio), AltCPR (alternatechannel power ratio), and noise are important performancemetrics for digital communication systems thatuse, for example, WCDMA (wideband code division multipleaccess) modulation. ACPR and AltCPR are bothmeasures of spectral regrowth. T ...

    /dl/41888.html

    标签: AltCPR WCDMA 5528 ACPR

    上传时间: 2013-11-02

    上传用户:maricle

  • 基于MASON公式的多功能二阶通用滤波器设计

    基于通用集成运算放大器,利用MASON公式设计了一个多功能二阶通用滤波器,能同时或分别实现低通、高通和带通滤波,也能设计成一个正交振荡器。电路的极点频率和品质因数能够独立、精确地调节。电路使用4个集成运放、2个电容和11个电阻,所有集成运放的反相端虚地。利用计算机仿真电路的通用滤波功能、极点频率和品质因数的 ...

    /dl/41908.html

    标签: MASON 多功能 二阶 滤波器设计

    上传时间: 2013-10-09

    上传用户:13788529953

  • A command-line file compression utility for Windows NT. It allows you to select files for NTFS fil

    A command-line file compression utility for Windows NT. It allows you to select files for NTFS file compression based on file name (with wild- cards), minimum file size, and/or a minimum compression ratio. You can also specify file extensions of files to be ignored. With C++ src

    /dl/189480.html

    标签: command-line compression for Windows

    上传时间: 2015-08-27

    上传用户:xjz632

  • This paper studies the problem of categorical data clustering, especially for transactional data ch

    This paper studies the problem of categorical data clustering, especially for transactional data characterized by high dimensionality and large volume. Starting from a heuristic method of increasing the height-to-width ratio of the cluster histogram, we develop a novel algorithm – CLOPE, which is v ...

    /dl/212998.html

    标签: data transactional categorical clustering

    上传时间: 2015-10-24

    上传用户:evil

  • This program includes: [5 7] convolutional code (encoder) + BPSK + AWGN + MAP (decoder). It evaluat

    This program includes: [5 7] convolutional code (encoder) + BPSK + AWGN + MAP (decoder). It evaluates Bit Error Rate and plots it versus SNR(signal to Noise Ratio).

    /dl/237662.html

    标签: convolutional includes program encoder

    上传时间: 2015-12-24

    上传用户:bruce5996