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pcma资料1
- 这是最新的卫星通信基础理论的Matlab仿真实现，pcma以及信号衰减和延迟的仿真。尽管不是我本人原创，但比较都经典。文件为*.m格式 -This is the latest in satellite communications theoretical basis Matlab Simulation, pcma and signal attenuation and delay in the simulation. Although it was not my original, but mor
Pseudolite Applications in Positioning and Navigation: Progress and Problems
- Global navigation satellite systems have been revolutionising surveying, geodesy, navigation and other position/location sensitive disciplines. However, there are two intrinsic shortcomings in such satellite-based positioning systems: signal attenuat
rayleigh-distribution-matlab
- In wireless communications, fading is deviation of the attenuation that a carrier-modulated telecommunication signal experiences over certain propagation media. The fading may vary with time, geographical position and/or radio frequency, and is often
Language_model_learning_in_chinese
- 语言模型学习论文-中文 基于最大熵方法的统计语言模型.pdf 基于对话回合衰减的cache语言模型在线自适应研究.pdf 基于Web网页语料构建动态语言模型.pdf 统计语言模型综述.pdf -Language model to study papers- Chinese based on the maximum entropy method of statistical language model. Pdf Round attenuation based on di
WIFI
- WIFI信号应用很好的经验列表，在不同的介质信号衰减，覆盖的具体范围-WIFI signal applications experience a good list of signal attenuation in different media, covering the specific scope of
channel-est-code
- 对OFDM传输信道的仿真，用matlab仿真了几个信道的衰减模型-For OFDM transmission channel simulation, using matlab simulation of a number of channel attenuation model
steam
- 本软件采用VB编程，用于分析工业上过热蒸汽在管道传输过程中的有用能衰减。-This software is programmed using VB for the analysis of industrial superheated steam in the pipeline transmission of useful energy attenuation.
fix_channel
- 固定卫星信道仿真源码 主要考虑雨衰因素-Fixed satellite channel emulation source major consideration Rain attenuation factor
mobile_channel
- 地面移动卫星信道仿真程序 考虑雨衰 阴影 和多径影响-Land mobile satellite communication channel simulation program to consider the shadow of rain attenuation and multipath effects
Reconstruct_on_of_oversampled_cosine_modulated_fil
- 本文首先推导出过采样滤波器组精确重构的条件, 由于此时所需的约束条件数比临界采 样时少, 因而可以设计出频域衰减特性更好的滤波器组-This paper is derived through sampling filters of exact reconstruction of conditions, due to time constraints required for critical extraction ratio When a small sample, so you
tebBOC
- his article presents the characteristics of the signal used for the Galileo system with respect to those of the GPS system, as well as the adapted receiver architectures. An analysis of the sources of unintentional interference in the GPS ans GALILEO
optical-fiber-transmission-
- 光纤传输特性 衰耗系数 是多模光纤和单模光纤最重要的特性参数之一，在很大程度上决定了多模和单模光纤通信的中继距离-Transmission characteristics of optical fiber attenuation
S259M
- This standard describes a serial digital interface for 525/60 and 625/50 digital television equipment operating with either 4:2:2 component signals or 4fsc composite digital signals. This standard has application in the television studio over
PCB-desin
- 1、如何选择PCB板材？ 选择PCB板材必须在满足设计需求和可量产性及成本中间取得平衡点。设计需求包含电气和机构这两部分。通常在设计非常高速的PCB板子(大于GHz的频率)时这材质问题会比较重要。例如，现在常用的FR-4材质，在几个GHz的频率时的介质损(dielectric loss)会对信号衰减有很大的影响，可能就不合用。就电气而言，要注意介电常数(dielectric constant)和介质损在所设计的频率是否合用。 -1, how to choose the PCB board
multidimensional-scaling
- 本文提出一种基于多维定标的无线传感器网络三维定位算法,结合RSS经验衰减模型和最短路径建立相异性矩阵,采用轻量级矩阵分解算法降低相异性矩阵分解的计算复杂性,并利用网络中存在的周期性消息将初始定位信息回送,在后台使用迭代优化算法对初始定位结果求精。仿真实验表明,在测距误差一定的情况下,该算法能够提高节点三维坐标的初始计算精度,经过集中式的优化求精后与MDS-MAP算法相比,能够明显地提高节点三维定位的精度-This paper presents a method based on multidim
Graphic-equalizer-circuit
- 用于控制音质的NF型调制控制电路，因仅能进行低音和高音的增强和衰减，所以不能进行细微的频率特性的补偿。述有，如果想使可听频带域的任意频率均可变，一般使用被称为图形均衡器的装置。这里使用DSP的例子在不断增加，如果要使用简单的电路则使用OP放大器较好。这种图形均衡器是将补偿的中心频率分割为5～7份，分别进行控制，由5个RLC电路组成，十分实用。分割的各个频率是以可听频率范围为对称轴均等分配而决定。-NF-modulation control circuit to control the sound
rev2
- 为达到干涉合成孔径声纳系统对信号源的特殊要求,提出了一种基于SOPC技术的FPGA实现方法,该信号源一方面提供给发射机模拟信号,还给回波信号采集系统提供时钟和同步信号以保证信号系统时间一致性,同时还给接收机的时变增益信号实现对回波信号衰减的补偿 另一方面还实时采集并传输声纳系统在水下的运动姿态、深度、压力等信息 经过湖试和海试,该信号源系统完成了模拟信号和数字信号各项指标的测试,满足设计要求。-To reach the special requirements interferometric s
3
- 由于载体对象的高动态特点，其上装载的GNSS 接收机在捕获信号和跟踪定位上面临很大的挑战，因此致使 GNSS/INS 组合系统的定位效果受到严重影响。本论文以 MEMS IMU/GNSS 超紧组合为研究目标，并以 MEMS IMU 环路辅助的GNSS/INS 紧组合技术为研究重点，深入研究了 MEMS IMU 辅助的 GNSS 信号捕获、MEMS IMU 辅助的 GNSS 信号跟踪、MEMS IMU 辅助的 GNSS/INS 紧组合导航定位算法和基于矢量跟踪结构的 GNSS/INS 超紧组
Wiener-filter-for-attenuation-of-noise-Mains-on-S
- Wiener filter for attenuation of noise Mains on Sinal Electrocardiography
boukar2016
- to know the effect of height and distance on attenuation