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Description: 在软件接收机的基础上,利用鉴频器辅助鉴相器的输出,引入一个模糊逻辑控制器,使得环路能够智能跟踪信号的动态变化.实验结果证明所提出的设计方法与传统环路相比可大幅度缩短跟踪时间,减小环路滤波器带宽,并能消除周跳.-In the software receiver, based on the use of auxiliary frequency discriminator phase detector output, the introduction of a fuzzy logic controller, the loop can be intelligent tracking signal dynamics. The experimental results demonstrate that the proposed design method with the traditional loop phase than we might have to significantly reduce the tracking time, reduce the loop filter bandwidth, and can eliminate the cycle slips.
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Size: 344064 |
Author: 何宁 |
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Description: Multi-Objective Approach
in GNSS Code Discriminator
Design
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Size: 1248256 |
Author: vinodh kumar |
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Description: The multipath performance of a given signal/receiver combination depends on various signal and receiver parameters like signal type/modulation scheme pre correlation bandwidth and filter characteristics, chipping rate of code ,relative power levels of multipath signals ,chip spacing between correlators and type of discriminator used for tracking.
For the following analyses the influence of code multipath will be illustrated by means of multipath error envelopes.
In these diagrams, the resulting ranging errors are plotted as a function of geometric path delay .the computation of
multipath errors envelops is based on the assumption, that the direct signal component is always available and that only one
multipath signal is present-The multipath performance of a given signal/receiver combination depends on various signal and receiver parameters like signal type/modulation scheme pre correlation bandwidth and filter characteristics, chipping rate of code ,relative power levels of multipath signals ,chip spacing between correlators and type of discriminator used for tracking.
For the following analyses the influence of code multipath will be illustrated by means of multipath error envelopes.
In these diagrams, the resulting ranging errors are plotted as a function of geometric path delay .the computation of
multipath errors envelops is based on the assumption, that the direct signal component is always available and that only one
multipath signal is present
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Size: 5120 |
Author: Rafal |
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Description: 从概念的角度分析了活动图并非结构的不足，系统地研究了时序模糊状态下的语音描述，以工作流的循环模式鉴别器作为实例，提出了活动图与形式化规范相结合的解决方法。最后结合抽象状态自动机ASM作为语义补充构造了鉴别器的活动图模型，从分支、合并、事件捕获等方面定义了详尽的规则，提高了模型的正确性、可验证性和一致性。-The insufficient of concurrent structure of activity diagram is analyzed in concept level,and the semantic of undefined scheduling is researched,and then by the case of loop discriminator,combines the activity diagram with formal specification.In the end,the discriminator model of activity diagrm is given with ASM semantics,rule is defined in Fork.Join and event capturing ect.,the correctness,verifiability and consistency are improved.
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Size: 140288 |
Author: Danny Lin |
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Description: The OpenCV "Video Surveillance" facility, also called "blob tracker" through much of the code, is a simple but practical facility intended to track moving foreground objects against a relatively static background. Conceptually it consists of a three-stage video processing pipeline:
1. A foreground/background discriminator which labels each pixel as either foreground or background.
2. A blob detector which groups adjacent "foreground" pixels into blobs, flood-fill style.
3. A blob tracker which assigns ID numbers to blobs and tracks their motion frame-to-frame. -The OpenCV "Video Surveillance" facility, also called "blob tracker" through much of the code, is a simple but practical facility intended to track moving foreground objects against a relatively static background. Conceptually it consists of a three-stage video processing pipeline:
1. A foreground/background discriminator which labels each pixel as either foreground or background.
2. A blob detector which groups adjacent "foreground" pixels into blobs, flood-fill style.
3. A blob tracker which assigns ID numbers to blobs and tracks their motion frame-to-frame.
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Size: 6922240 |
Author: dams |
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Description: 一种新的GPS接收机C_A码跟踪环鉴别器算法-A new GPS receiver C_A code tracking loop discriminator algorithm
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Size: 580608 |
Author: 陈睿 |
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Description: pi/4-qdpsk调制解调程序，能有效地进行差分解调和鉴频器解调，在一些不易提取载波的场合很有用。因此，利用仿真来研究系统是必要的。-pi/4-qdpsk modulation and demodulation process, can effectively reconcile the difference solution frequency discriminator demodulation, carrier extraction in a number of difficult situations is useful. Therefore, the use of simulation to study the system is necessary.
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Size: 1024 |
Author: 红茶坊 |
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Description: 锁相鉴频器的课程设计方法，主要讲述锁相鉴频器的原理及各个位置的数值计算。-PLL frequency discriminator method of course design, mainly about the principle of phase-locked frequency discriminator, and each position calculated.
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Size: 961536 |
Author: gdfrg |
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Description: 程序实现2FSK的解调，使用过零检测法，分为预处理模块和鉴频处理模块，Verilog语言，在modelsim仿真通过-2FSK Program for demodulation of zero-crossing detection method used, divided into pre-processing module and the discriminator processing module, Verilog language, adopted in the modelsim simulation
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Size: 17408 |
Author: 卢平 |
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Description: A low pass Noise, FM discriminator and Envelop Detector matlab code
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Size: 1024 |
Author: rafael |
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Description: A simple program to solve a 2nd degree equation in one unknown using 2 methods (discriminator method & Trial and eror method).
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Size: 781312 |
Author: Usama |
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Description: 基于multisim的调频接收机 包含混频中放低放鉴频-FM receiver based on multisim mixing in the lower release contains discriminator
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Size: 1377280 |
Author: 张琪 |
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Description: FISHER CLASIFICATOR
Classifies samples into two categories using the Fisher discriminator
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Size: 1024 |
Author: RACH |
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Description: OFDM系统中提出一种改进方法对频偏的捕获, 在联合使用9个短前导序列和长前导序列估计算法的基础上,采用鉴频环路的方法来消除算法中的除法和取模运算 -OFDM system in an improved way of deviation of the capture, in the joint use of nine short leader sequence and the long preamble sequence estimation algorithm, based on the frequency discriminator method to eliminate the loop algorithm in the division and modulo operation
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Size: 272384 |
Author: fy |
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Description: 本设计是一个数字调频收音机，调频就是频率调制，所谓频率调制就是原来等幅恒频的高频信号的频率，随着调制信号（音频信号）的幅度变化而变化，调频收音机（FM Radio）就是接收这些频率调制的无线电信号，经过解调还原成原信号的电子设备。FM Radio电路一般主要由接收天线、振荡器、混频器、AGC（自动增益控制）、中频放大器、中频限幅器、中频滤波器、鉴频器、低频静噪电路、搜索调谐电路、信号检测电路及频率锁定环路、音频输出电路等组成。本设计就是用单片机控制集成了上述所有FM功能的专用芯片，设计一个数字FM收音机系统。
-This design is a digital FM radio, FM is frequency modulation, frequency modulation is the original so-called constant frequency amplitude high-frequency signal frequency, with the modulation signal (audio signal) the magnitude of change, FM Radio (FM Radio) is frequency modulation radio receiving these signals, the demodulated signal to restore to the original electronic equipment. FM Radio is generally mainly by the receiving antenna circuit, oscillators, mixers, AGC (automatic gain control), IF amplifier, IF limiter, IF filter, frequency discriminator, frequency squelch circuit, search tuning circuit, signal detection and frequency locked loop circuit, the audio output circuit. This design is integrated with MCU control all of the above FM function ASIC design of a digital FM radio system.
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Size: 441344 |
Author: 周涛 |
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Description: sift算法，是一个常用高效图像特征描述子-sift algorithm is a efficient discriminator
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Size: 122880 |
Author: 刘军 |
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Description: 通信电子电路仿真实验中锁相鉴频器的matlab仿真-Communication electronic circuit simulation experiment phase locked frequency discriminator matlab simulation
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Size: 915456 |
Author: liuyunhao |
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Description: 位同步程序，本程序通过早迟门的结果，通过相位误差鉴别器和环路滤波器和DCO，来达到位同步。-Bit synchronization program, this program, the results of the early-late gate phase error discriminator and loop filter and DCO to achieve bit synchronization.
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Size: 2048 |
Author: jackjiang |
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Description: 高动态环境下载波频率捕获的设计与实现，针对高动态的机载环境和FPGA的应用要求，比较并确定了基于软件无线电思想的扩频接收机中载波频率捕获的方案；完成了鉴频器、比特定时提取电路等模块的设计.论文对系统进行了理论分析和性能仿真-Download frequency of the high dynamic environment to capture the design and implementation of application requirements for high dynamic airborne environment and FPGA, compare and determine based on the ideas of software radio spread spectrum receiver carrier frequency capture program the completion of a frequency discriminator bit timing extraction circuit module design thesis on the system of theoretical analysis and performance simulation
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Size: 1920000 |
Author: jing |
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Description: 鉴频器，基于NE564，完成解调功能，最高中心频率50Mhz-Frequency discriminator based NE564, complete demodulation function, the highest center frequency 50Mhz
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Size: 665600 |
Author: 王子任 |
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