Japan has become to super-Aging society since Oct.1st,2005,because people over 65 years old occupy more than 21％ among to......

为了满足大型望远镜对于速度控制响应快、超调量小、稳态精度高、低速运行平稳的要求，在分析经典PID控制算法的基础上，提出了一种变......