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Watchdog
- 看门狗,又叫 watchdog timer,是一个定时器电路, 一般有一个输入,叫喂狗,一个输出到MCU的RST端,MCU正常工作的时候,每隔一端时间输出一个信号到喂狗端,给 WDT 清零,如果超过规定的时间不喂狗,(一般在程序跑飞时),WDT 定时超过,就回给出一个复位信号到MCU,是MCU复位. 防止MCU死机. 看门狗的作用就是防止程序发生死循环，或者说程序跑飞-Watchdog, called watchdog timer, a timer circuit, generally have
OFDMchannelestimate
- 书文提出了一种称为平均反馈(AF)的新算法．该算法利用两个相邻的 0FDM符号之间的荧联信息对LS算法的估计结果进行平均和反馈．以减少离斯白噪声岛子信道间干扰(1cI)对信道估计结 果的影囔。-The book article proposed one kind is called the average to feed back (AF) the new algorithm. This algorithm uses two neighboring between the 0FDM ma
Introduction_to_Simulink_with_Engineering_Applica
- very nice that you can use to build a decision feed back eqaualizer
blackmer_ICWN_11
- The decoding of Low Density Parity Check (LDPC) codes through the iterative process of belief propagation presents practical challenges for designers looking for real time performance in communication systems. Due to the geometric and finite pattern
Array-beamforming-optimization
- 本文给出了一种利用幅相加权对阵列天线进行全局优化的方法。为了使天线的辐射波束形成给定的 方向图，采用联合应用DFP和BFGS公式的变度量算法对阵列天线各单元的馈电幅度和相位分布进行优化， 通过C++语言编程计算实现，从而使得优化后的阵列天线主波束形状能够与预给波束形状相吻合，达到设计 要求。全局优化是本文的特色，它弥补了局部优化结果的精确度依赖于初始值的缺点，因而得以保证通过优 化得到的天线主波束与给定波束的主瓣相吻合，副瓣也得到有效控制。该方法具有快速收敛，计算量小等优 点
8.4.1-Feed-Sidelobe-Illumination
- When we feed a reflector with a narrow beam feed antenna, the narrow beam will under-illuminate the reflector causing reduce the amplitude taper efficiency while decreasing the feed power spilled past the rim of the reflector. However, the feed sidel
spilloverloss
- In double reflector antennas feed, feed support beams and sub-reflector especially cause distribution losses and large blockings in antenna apertures. In previous studies, the spillover losses due to open-ended rectangular and circular sectio
mojkod
- Wild spiders live in a vast spectrum of environments. Tropical spiders, for example, live in tropical forests, their oldest known habitat, where the year-around warmth allows them to survive and grow into enormous monsters. They build gigantic webs b
naskod
- British Isles spiders, a subspecies of Urban Spiders, can also live in the mouth cavities of British citizens since the bits of semi-digested foodstuffs that these spiders crave are abundant between the Brit's never-brushed teeth. These spiders have