Through the AT89C51, can be carried out on the LCD to read and write.

在基于脉冲的UWB系统中，采用瑞克接收机合并多径信号能量并进行相干检测，信道估计问题即估计多径信号的到达时间和幅度。在基于OFDM的UWB系统中，接收机根据信道频域响应对每个子信道进行频域均衡后进行相干检测，信道估计问题即估计信道频域响应。-Pulse-based UWB systems, rake receivers using the combined multipath signal energy and coherent detection, channel estimation problem that is estimated multipath signal arrival time and amplitude. OFDM-based UWB system, the receiver under the channel frequency response of each subchannel to frequency domain equalization after coherent detection, channel estimation problem that is estimated channel frequency response.

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采用电流正弦波细分原理，研制出了一种三相混合式步进电机驱动器，实现了三相混合式步进电机的相电流闭环控制和细分驱动。具有多种细分和相电流设置功能，能够驱动多种三相混合式步进电机，其最小步距角为0.036°。-Breakdown of the use of sinusoidal current principle, developed a three-phase hybrid stepping motor driver, to achieve a three-phase hybrid stepping motor phase current breakdown of the closed-loop control and drive. With multiple segments and phase current setting function, able to drive a variety of three-phase hybrid stepping motor, the smallest step angle is 0.036 °.

单片机外部中断的典型应用，proteus仿真，程序，原理图全套。-External interrupt a typical single-chip applications, proteus simulation, procedures, a full set of schematics.

功放的电路图，是新款式的，有价值-Power amplifier circuit, is a new style, and valuable

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汇编学习时的PPT，非常不错！~-compilation of the PPT learning, very good! ~

电动车从起跑线出发（车体不得超过起跑线），沿引导线到达B点。在“直道区”铺设的白纸下沿引导线埋有1~3块宽度为15cm、长度不等的薄铁片。电动车检测到薄铁片时需立即发出声光指示信息，并实时存储、显示在“直道区”检测到的薄铁片数目。 （2）电动车到达B点以后进入“弯道区”，沿圆弧引导线到达C点（也可脱离圆弧引导线到达C点）。C点下埋有边长为15cm的正方形薄铁片，要求电动车到达C点检测到薄铁片后在C点处停车5秒，停车期间发出断续的声光信息。 （3）电动车在光源的引导下，通过障碍区进入停车区并到达车库。电动车必须在两个障碍物之间通过且不得与其接触。 （4）电动车完成上述任务后应立即停车，但全程行驶时间不能大于90秒，行驶时间达到90秒时必须立即自动停车。 -err

此程式为LED驱动,用合泰的蕊片,希望对大家有帮助-This program for LED-driven, with the chips Hetai hope everyone has to help