Cognitive-Radio

This paper is a compilation of the book s problems Mitra digital signal processing 3 ed

说明：  克雷格插值能三维绘图,能更准确的画出三维图像(3D plot with interpolation)

说明：  利用粒子群算法综合微带天线阵列方向图，可以自适应调节副瓣电平和波瓣宽度。(By using particle swarm optimization (PSO) to synthesize the pattern of microstrip antenna array, the sidelobe level and lobe width can be adjusted adaptively.)

m序列PTS方法: “mSeqPTS_Papr_V8.m”，m序列PTS方法(V=8)PAPR的互补累积分布函数(CCDF)曲线； “PTSV8_Mseq_sspa.m”， m序列PTS方法(V=8) 经过SSPA放大器后OFDM系统误码性能曲线。 (A way to reduce the high PAPR of OFDM system-PTS)

Nakagami distribution simulation with theoretical comparison

说明：  cholesky分解，求解一般的线性方程组很方便。(Cholesky decomposition, for solving general linear equations easily.)

自编的遗传算法代码实际例子，比较简单，请多指教。(Practical examples of self genetic algorithm code, relatively simple, please enlighten.)

Matlab applications it is often necessary to create vectors, to delete elements of given vectors, to substitute elements in given vectors, to append vectors or to insert a given vector into another vector. All these methods are discussed in this short tutorial. The corresponding m-files are available.

说明：  毕设论文--QPSK信号全数字化解调的研究与设计(Complete set paper- QPSK signal all-digital demodulation Research and Design)

求系统单位节约给定相应的性能指标（超调量，峰值时间，调整时间），其中key=1表5 超调量 key=2表2 的超调量，y，t表示系统节约相应的函数值与其对应时间(Demand units to save the system give the corresponding performance indicators (overshoot, peak time, adjusting the time), where key = 1 Table 5 percent overshoot key = 2 Table 2 overshoot, y, t that the system saves the corresponding function value and its corresponding time)