Thesis_OFDM_vs_CDMA

一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN信道。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。(A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN channel for the wireless channel. At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results.)

将toeplitz矩阵作为压缩感知测量矩阵，并对其进行性能评估。(Toeplitz matrix as the measurement of compressed sensing matrix, and its performance evaluation.)

粒子滤波技术在非线性、非高斯系统表现出来的优越性，决定了它的应用范围非常广泛。另外，粒子滤波器的多模态处理能力，也是它应用广泛有原因之一。国际上，粒子滤波已被应用于各个领域。在经济学领域，它被应用在经济数据预测；在军事领域已经被应用于雷达跟踪空中飞行物，空对空、空对地的被动式跟踪；在交通管制领域它被应用在对车或人视频监控；它还用于机器人的全局定位。 (Particle filter technology in the non-linear, non-Gaussian system demonstrated the superiority of the decision of its wide range of applications. In addition, the particle filter for multimodal capabilities, also has one of the reasons it is widely used. Internationally, the particle filter has been applied to various fields. In economics, it is applied to forecast economic data in the military field have been applied to radar tracking aerial flying objects, air to air, air-passive tracking in the field of traffic control it was used in the car or the person video monitoring also used the global positioning robot.)

dafx required for many files

格子BLOTZMANN方法，二维圆柱绕流的实现(Lattice BLOTZMANN method, two-dimensional flow around a cylinder to achieve)

盲源分离的一个很好的例子，可以仿真出来用，稍微修改即可用到多处！(A good example of blind source separation, can be simulated to use, to modify slightly used at many points。 )

超声场仿真工具包，matlab编写。请认真书写上传资料的详细功能、包含内容说明(FUCTION LIKE Field_II)

说明：  快跳频系统， 数据采用MFSK调制 ，调频程序(Fast frequency hopping systems, data MFSK modulation, FM program)

空时正交编码源程序，参考文献： V.Tarokh,H. Jafarkhani,and A. R. Calderbank "Space-Time Codes from ％Orthogonal Designs",IEEE Trans. Inform. Theory VOL. 45,NO. 5,JULY 1(orthogonal space-time coding source, References : V. Tarokh, H. Jafarkhani. and A. R. Calderbank, "Space-Time Codes from Or% thogonal Designs " IEEE Trans. Inform. Theory VOL. 45, NO. 5. JULY 1)

说明：  按照信息论基本原理的解释，信息是系统有序程度的一个度量，熵是系统无序程度的一个度量；如果指标的信息熵越小，该指标提供的信息量越大，在综合评价中所起作用理当越大，权重就应该越高。因此，可利用信息熵这个工具，计算出各个指标的权重，为多指标综合评价提供依据。(According to the interpretation of the basic principles of information theory, information is a measure of the degree of orderliness of the system, and entropy is a measure of the degree of disorder of the system. If the information entropy of the index is smaller, the amount of information provided by the index is larger, and the role of the index in the comprehensive evaluation should be greater, the weight should be higher. Therefore, we can use the tool of information entropy to calculate the weight of each index, and provide a basis for the comprehensive evaluation of multiple indicators.)