搜索资源列表
ARMODEL
- 功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同
fASR
- 以半连续隐含马尔可夫模型HMM 为例,分析了影响Viterbi算法效率的主要原因,讨论了提高该算法效率的3种实用策略,即码本剪枝、Beam剪枝及降低精度,在保证一定识别率的前提下,使得搜索处理更加有效,提高了搜索的速度-to semi-continuous HMM HMM example, Analysis of the impact on the efficiency of the Viterbi Algorithm main dis
5
- QPSK技术具有抗干扰性能强、误码性能好、频谱利用率高等优点,目前广泛应用于数字通信、数字视频广播、数字卫星广播等领域 详细介绍了QPSK技术的工作原理、性能以及使用调相法和相位选择法产生QPSK信号的电路方框图及特点。-QPSK technology has strong anti-interference performance, BER performance and spectral efficiency advantages,
00963812
- 文章中分析了OFDM系统的频谱利用率，研究了OFDM系统中的信道判决反馈均衡问题-Article analyzes the spectral efficiency of OFDM systems to study the OFDM system channel decision feedback equalizer problem
8
- 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16QPSK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 Single-Path Rayleigh Channel Four received four V-BLAST: (1) Pl
Research_on_the_Key_Technology_of_Cognitive_Radio.
- 认知无线电是一种通过与其运行环境交互而改变其发射参数提高频谱利用率的新的智能技术。-Cognitive radio is viewed as a novel approach that can change its transmitter parameters based on interaction with the environment where it operates and can alSO improve its sp
mimo_sim
- MIMO 系统仿真，对时变信道的自适应调制-erq.m : function for ERQ algorithm in MIMO systems space_wf.m : function for spatial domain power waterfilling st_wf.m : function for spatial and temporal domain waterfilling MIMO_rate.m : Plo
vblast_sim
- VBLAST系统仿真，针对时变信道的自适应调制算法-erq.m : function for simulating ERQ algorithm with Gap parameter sqpc_g.m : function for simulating SQPC algorithm with Gap parameter sr_g.m : function for simulating SR algorithm with Gap p
pranay_thesis
- In this thesis we have concentrated on energy consumption issue and aim to develop an energy efficient data aggregation protocol. To provide energy efficiency we have considered a cluster-based wireless sensor network.
Huffmancoding
- 在已知信源统计规律的情况下，快速实现对信源的霍夫曼编码，编码效率达到97 以上-Statistical law known source case, rapid implementation of the source of the Huffman coding, coding efficiency up to 97 or more
sgergyhij
- 用MATLAB实现算术编码，并计算其平均码长，熵和编码效率-Achieved using MATLAB arithmetic coding, and calculates the average code length, entropy and coding efficiency
ofdm
- 正交频分复用的研究，可以有效提高上行链路的频谱利用率。-Orthogonal frequency division multiplexing studies can effectively improve the uplink spectral efficiency.
diff_efficiency
- Calculation of diffraction efficiency of rectangular phase grating (scalar theory)
diff_efficiency_shadow_effect
- Calculation of diffraction efficiency of rectangular phase grating (comparison scalar theory and scalar theory with shadow effect)
16QAM
- 16QAM因其高频谱利用率而被第三代移动通信增强型技术HSDPA采用。由于Turbo译码需要软信息输入，因此，解调输出需要计算比特软信息（LLR）。本文分析了LLR理论算法并在此基础上导出了简化算法。-16QAM its high spectral efficiency have been enhanced third-generation mobile communication technology HSDPA use. Turbo
AFCooperativeDiversutyNumericResult
- AF协作分集信道与M-QAM自适应调制技术的系统频谱效率分析-AF cooperative diversity channels with M-QAM adaptive modulation spectral efficiency of the system
tps63030
- HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 1-A SWITCHES
Detection-efficiency-system
- 用于汽车变速箱试验台测试机械效率，可实现对试验台的远程控制，rs232通信-Gearbox test rig for automotive testing mechanical efficiency, enabling remote control of the test bed, rs232 communication
BERd2
- 在不同的信道条件下计算第一类优先级数据平均频谱效率的MATLAB函数-In different channel conditions, the first class priority data calculated the average spectral efficiency of the MATLAB function
spectral-efficiency-of-cdma
- Spectral Efficiency of CDMA Cellular Networks