风力机的一模型

使用codewarrior集成环境对freescale 的mcf5213单片机进行实时系统的多线程控制(The codewarrior integrated environment for real-time systems on the freescale mcf5213 microcontroller multithreaded control)

使用mpu6050的dmp获得的欧拉角和四元数(Dmp obtained using mpu6050 of Euler angles and quaternion)

management system requirements are as follows: 1. can be in various ways, such as title, number, the author) of the query library. 2. To be able to easily borrow books, renewal of library books, return to books. 3. To be able to query their basic information and to borrow books. 4. To be able to become familiar with Library Management System.

这是关于单片机各种应用接口的子程序还有驱动程序，还是用c语言写的，非常实用(on SCM applications Interface subroutine also driver, or a c languages, very practical!)

基于AT89C51单片机DS18B20调试程序(Debugger based on AT89C51 microcontroller DS18B20)

上位机发送数据包，下位机实现简单数据接，然后可以存储到其他位置(PC to send data packets, lower machine simple data connection, which can then be stored in a different location)

存储器EEPROM AT45db081的数据读写操作,同时了解硬件spi读写操作(The data reading and writing of memory EEPROM AT45db081 , helping to understand the operation of spi)

Multi-chip communication can be used to see it(Multi-chip communication can be used to see it )

关于SHT11与单片机的一些源代码,经验证过,没有错误(SHT11 and SCM on some source code, proven before, no errors)

：LTE(Long Term Evolution，长期演进)系统中的小区初始搜索过程通过分别检测主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)来完成，搜 索结果包括小区组ID、符号定时、频偏估计、组内小区ID以及帧定时[1]。然而，若接收信号   1IDN  2IDN 中存在整数倍频偏，则由于时域的相位旋转，主同步信号将很难用传统的相关算法检测到。提出一种主同步信号与整数倍频偏联合检测的方法，即使存在整数倍频偏，也能得到正确的符号定时。辅同步信号采用的是非相干的差分相关检测[2]，仿真表明，与传统的匹配滤波算法相比，可以有效的对抗信道时延扩展和载波频偏，适用于高速场景下时分双工(Time Division Duplex，TDD)LTE系统的同步。(In LTE systems, the initial cell search process is completed by detecting the primary synchroniza-tion signal and the secondary synchronization signal. The searching results include cell ID group, symbol timing, frequency offset estimation, intra group cell ID and frame timing[1]. However, if integer frequency offset presents in the received signal, due to time-domain phase rotation, the primary synchronization signal will be difficult to detected using the conventional correlation algorithm. A new joint detection method for integer frequency offset and primary synchronization signal is proposed, which can get the correct symbol timing even if the presence of integer frequency offset. Secondary synchronization signal is processed using the differential non-coherent correlation detection method[2]. Simulations show that compared with the tradi-tional matched filtering algorithms, it can effectively combat the channel delay spread and carrier frequency offset and especially suitable for )