displaycurrenttime

用PTS降低PAPA的仿真源代码,试过了不错,是转发的(PTS reduce the simulation with the source code PAPA)

Freq Shift Keying simulation in matlab

超声阵列换能器的方正，合成孔径的波束形成程序(Ultrasonic transducer array synthetic aperture beamforming procedure)

无线通信调制C++源代码,包含QPSK调制方式(Wireless communication modulation C++ source code, including QPSK modulation )

海面3维动态场景描述,改变程序中的风速大小就能得到不同海情的海面(Sea 3-D dynamic scene description, change the size of the program s speed could be different sea and the sea.)

提出了一种新的宽带DOA估计方法:频域子空间正交性测试方法(TOFS:Test of orthogonality of frequency sub- space)。该方法通过同时测试频域信号共同带宽内各频段噪声子空间与阵列流形之间的正交性来进行DOA估计。与宽带相干信号子空间方法不同,TOFS方法不需要任何初始值的预估及聚焦操作。与宽带非相干信号子空间方法也不同,TOFS方法同时测试各频段噪声子空间与阵列流形之间的正交性。本文仿真了TOFS与IMUSIC、CSSM、TOPS的性能比较。仿真结果表明TOFS方法在中等信噪比以上时有较好的性能,且避免了TOPS方法中常出现的伪峰。 (Proposed a new broadband DOA estimation methods: subspace orthogonal frequency domain test methods (TOFS: Test of orthogonality of frequency sub-space). The method by simultaneously testing the frequency domain signal bandwidth of each band noise common sub-orthogonality between space and the array manifold to be DOA estimates. And broadband coherent signal subspace different methods, TOFS method does not require any initial estimate and focusing operation values. And broadband incoherent signal subspace methods are different, TOFS method for simultaneous testing of each band orthogonal noise subspace and the array manifold between. This paper compares the performance TOFS simulation and IMUSIC, CSSM, TOPS is. Simulation results show that the method TOFS better performance when more moderate SNR and spurious peaks TOPS method avoids the often occur.)

载机使用雷达和红外装置对目标进行跟踪定位，对它们的测量值使用数据融合技术进行处理，使得跟踪结果更精确。(Carrier aircraft using radar and infrared devices on the target for tracking and positioning of their measurements using data fusion technology for processing, so that the tracking results more accurate.)

A signal is transmitted using a carrier frequency of 900 MHz. It is transmitted through a multipath channel which can be modelled as Rayleigh fading. Assumingthe Dopper spread as 10Hz and the number of multipaths as 10, generate the Rayleigh faded signal. Compute the outage rate (the probability of the signal falls below certain rate, say ?10 dB) of the signal. Using MATLAB, demonstrate the path loss as a function of loss parameter for distances ranging from 2 km to 40 km. Calculate the power loss in dB

在Matlab中实现数字通信FPGA硬件设计(In Matlab in digital communications hardware design FPGA)

提供了小波算法的程序，该程序在MATLAB中得到验证，简单可行。(introduce a program about the wavelet ,the program is easy and used in the MATLAB)