4QAM_2.5GHz

LTE系统中小区的选择，根据物理位置或是最大发射功率(enb in LTE system)

针对影响目标跟踪性能的关键因素——机动目标模型及其状态转移方程，探讨了基于Singer统计模型的卡尔曼滤波算法实现。(Aiming at the key factor that affects the performance of target tracking maneuvering target model and its state transition equation, the Calman filtering algorithm based on Singer statistical model is discussed.)

描述了智能天线在无线通信环境下的各种应用。(Describes a smart antenna in a wireless communication environment, a variety of applications.)

基于压缩感知的信道估计代码，有信道模型的建立和压缩感知信号的估计(Estimated based on compressed sensing channel code, the channel model)

说明：  巴特沃斯滤波器C语言实现,低通滤波器,IIR(Butterworth filter C language implementation, low pass filter, IIR)

频率选择性衰落信道的建模与仿真，具体实施方法(Frequency selective fading channel modeling and simulation modi, concrete implementation methods)

大气波导下，电磁波射频追踪研究，利用Matlab进行仿真(Radio Frequency Tracking of Electromagnetic Waves in Atmospheric Waveguide)

从时域分析比较了ofdm和stbc与ofdm结合的性能差别(from time-domain analysis and comparison of OFDM stbc OFDM combined with the performance difference)

说明：  8. 单径瑞利信道中的四发四收V-BLAST： (1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量16QAM调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (2) 计算所设计方案的频谱效率是多少，单位为bit/Hz/s。(8. Four transmit four receive v-blast in single-path Rayleigh channel: (1) please design a specific navigation-assisted channel estimation method and conduct simulation with Simulink to measure the bit error rate performance of 16QAM modulation.The relation curve between the bit signal-noise ratio and the mean square error of channel estimation is drawn, and the relation curve between the bit signal-noise ratio and the bit error rate is drawn. (2) calculate the spectral efficiency of the designed scheme in bit/Hz/s.)

正弦调频信号的时域 频域 模糊度函数的设计(Time domain sinusoidal FM signal frequency-domain ambiguity function design)