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The design of digital frequency meter can be divided into measurement and displa...
数字频率计的设计可以分为测量计数和显示。其测量的基本原理是计算一定时间内待测信号的脉冲个数，这就要求由分频器产生标准闸门时间信号，计数器记录脉冲个数，由控制器对闸门信号进行选择，并对计数器使能断进行同步控制。控制器根据闸门信号确定最佳量程。-The design of digital frequency meter can be divided into measurement and display count. The basic principle of its measurement is calculated under test signal within a certain period of time the number of pulses, which have a standard requirement by the divider gate time signal pulse counter records the number of signals from the controller to choose the gates and counters to make off synchronous control can be carried out.Controller based on the gate signal to determine the optimum range.
- 2022-07-05 10:34:03下载
- 积分：1
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是一个单一的P89LPC938
The P89LPC938 is a single-chip microcontroller, available in low cost packages, based on
a high performance processor architecture that executes instructions in two to four clocks,
six times the rate of standard 80C51 devices. Many system-level functions have been
incorporated into the P89LPC938 in order to reduce component count, board space, and
system cost.
- 2022-07-13 08:11:06下载
- 积分：1
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ARM APPLICATION AND SYSTEM DEVELOPMENT ON S3C4510B (介绍的很详细,很适合入门)...
ARM APPLICATION AND SYSTEM DEVELOPMENT ON S3C4510B (介绍的很详细,很适合入门)-ARM APPLICATION AND SYSTEM DEVELOPMENT ON S3C4510B (described in great detail, it is suitable for entry)
- 2022-07-10 15:08:27下载
- 积分：1
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TI launched four dollars only Bluetooth chip can be ordered AT Bluetooth chip
TI推出了4美元的蓝牙芯片只能在蓝牙芯片订购
- 2022-05-09 03:08:55下载
- 积分：1
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一个oa 分析，比较全面，有很好的参考价值
一个oa 分析，比较全面，有很好的参考价值-a oa analysis, a more comprehensive way, a very good reference value
- 2022-04-28 05:13:26下载
- 积分：1
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汽车中的话音拨号系统是自动语音识别技术的应用热点. 自动语音识别系统是一个
基于训练的系统. 在汽车噪声中, 由于实际应用环境与形成系统参数的训练环境的失配...
汽车中的话音拨号系统是自动语音识别技术的应用热点. 自动语音识别系统是一个
基于训练的系统. 在汽车噪声中, 由于实际应用环境与形成系统参数的训练环境的失配, 传统
语音识别系统的性能会大幅度地下降, 从而无法实用. 为了提高语音识别系统在特定环境下的
识别率及实用性, 首先根据汽车环境中语音的失真模型分析了系统性能下降的原因, 然后针对
加性汽车噪声与信道失真对系统的影响, 讨论了在汽车噪声中改善语音识别系统性能的方法.
提出了在识别系统中用基于子带的语音增强算法和倒谱均值相减算法相结合的方法. 对大量
的多人连续数字串语音的识别实验表明, 这一方法大大提高了系统在汽车噪声环境中的识别
率, 它还可以简便、实时的实现, 具有一定的实用性.-err
- 2022-07-19 00:08:15下载
- 积分：1
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LVDS的manual_low所有者。
LVDS Owner.s Manual_Low-Voltage_Differentia_Signaling
- 2022-08-06 12:01:41下载
- 积分：1
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fpga重要的技术材料 有关于XILINX得板子
fpga重要的技术材料 有关于XILINX得板子-FPGA important technical materials have on board a XILINX
- 2022-09-23 05:45:03下载
- 积分：1
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scjp大全.zip
scjp大全.zip-scjp Series. Zip
- 2022-03-22 10:25:42下载
- 积分：1
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Bluetooth and Infrared and USB technical documentation, Bluetooth and Infrared a...
ZIGBEE技术文档,ZIGBEE是下一代无线通信技术-Bluetooth and Infrared and USB technical documentation, Bluetooth and Infrared and USB is the next generation of wireless communication technology
- 2022-08-24 02:42:38下载
- 积分：1
