doppler-shift

该程序全面仿真了蜂窝小区，主要是信道分配、切换等(The program overall simulation of a honeycomb village, mainly is the channel allocation, switch, etc )

说明：  实现turbo码编程，是matlab源程序。(matlab program of turbocoder)

DS18B20温度模块，LCD1602显示(DS18B20 Temperature Module, LCD1602 Display)

说明：  LDPC码的mackay构造法，PEG构造法，QC-LDPC构造，SPA译码算法(LDPC codes are constructed by Mackay, PEG, QC-LDPC and Spa decoding algorithms)

技术文档：OFDM载波频偏估计器，保护捕获和跟踪模式，捕获范围很宽，采用ML估计器，在AWGN和多径信道均表现优良的快速捕获性能。(OFDM carrier estimator)

脉冲压缩的匹配滤波。目标距离分别为10米，30米和100米，对于未压缩的脉冲，三个回波信号混叠在一起，不能分辨，而经过脉冲压缩的脉冲信号则可通过匹配滤波收到3个回波信号(Matched filtering for pulse compression.Target distances are 10 metres, 30 metres and 100 metres, respectively. For uncompressed pulses,The three echo signals are overlapped and can not be distinguished. While pulse compression can distinguish three echo signals after matched filtering)

利用vc编写的基于Goose报文的通信程序，在此程序中可对所发送的报文进行设定。(Goose vc prepared based on the use of packet communication program, in this procedure can send packets to the set.)

说明：  LDPC的matlab仿真，使用BP算法，在BPSK调制信道下仿真(Matlab simulation of LDPC, using BP algorithm, simulation under BPSK modulation channel)

simulink model for QPSK Rayleigh channel

Blimpduino is a very low cost open source autonomous blimp. It consists of an Arduino-based blimp controller board with on-board infrared and ultrasonic sensors and an interface for an optional RC mode, a simple gondola with two vectoring (tilting) differential thrusters, and ground-based infrared beacon. It will be available as a commercial kit, complete with a mylar envelope, in late 2008.