Description: HART协议由Rosemount公司开发且已向每个使用者开放HART协议采用标准的Bell 202频移键控信号以1200波特通信以低电平加载于4mA~20mA模拟信号上，由于载波信号的平均值为零所以它对模拟信号没有影响。-HART agreement develops by Rosemount Corporation also opened
the HART agreement to each user to use the standard the Bell 202
frequency-shift keying signal increase by 1,200 bauds correspondences
by the low level on the 4mA~20mA simulated signal, because
intelligence signal mean value for zero therefore it has not affected
to the simulated signal. Platform: |
Size: 182045 |
Author:李姚 |
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Description: 产生一个频移键控信号（FSK），该产生的信号可供复数解析用，频率归一化-produce a signal frequency shift keying (FSK), which is the signal for analysis using the plural, to a frequency of Platform: |
Size: 1254 |
Author:cuixu |
Hits:
Description: ２ＦＳＫ２ＰＳＫ－二进制频移键控和相移键控信号发生器的源程序，是基于ＱＵＡＲＴＵＳ ＩＩ软件平台，使用ＶＨＤＬ语言-2FSK2PSK-binary frequency shift keying and phase shift keying signal generator source, QUARTUS II is based on the software platform, the use of VHDL Platform: |
Size: 876 |
Author:张全文 |
Hits:
Description: Hart源代码．HART协议简介下载30次,HART协议由Rosemount公司开发且已向每个使用者开放HART协议采用标准的频移键控．-Hart source code. HART agreement on downloaded 30 times. HART protocol developed by Rosemount and each user has to agree to adopt open standards HART The frequency shift keying. Platform: |
Size: 10935 |
Author:李扬 |
Hits:
Description: HART协议由Rosemount公司开发且已向每个使用者开放HART协议采用标准的Bell 202频移键控信号以1200波特通信以低电平加载于4mA~20mA模拟信号上，由于载波信号的平均值为零所以它对模拟信号没有影响。-HART agreement develops by Rosemount Corporation also opened
the HART agreement to each user to use the standard the Bell 202
frequency-shift keying signal increase by 1,200 bauds correspondences
by the low level on the 4mA~20mA simulated signal, because
intelligence signal mean value for zero therefore it has not affected
to the simulated signal. Platform: |
Size: 182272 |
Author:李姚 |
Hits:
Description: 产生一个频移键控信号（FSK），该产生的信号可供复数解析用，频率归一化-produce a signal frequency shift keying (FSK), which is the signal for analysis using the plural, to a frequency of Platform: |
Size: 1024 |
Author:cuixu |
Hits:
Description: ２ＦＳＫ２ＰＳＫ－二进制频移键控和相移键控信号发生器的源程序，是基于ＱＵＡＲＴＵＳ ＩＩ软件平台，使用ＶＨＤＬ语言-2FSK2PSK-binary frequency shift keying and phase shift keying signal generator source, QUARTUS II is based on the software platform, the use of VHDL Platform: |
Size: 1024 |
Author:张全文 |
Hits:
Description: Hart源代码．HART协议简介下载30次,HART协议由Rosemount公司开发且已向每个使用者开放HART协议采用标准的频移键控．-Hart source code. HART agreement on downloaded 30 times. HART protocol developed by Rosemount and each user has to agree to adopt open standards HART The frequency shift keying. Platform: |
Size: 10240 |
Author:李扬 |
Hits:
Description: We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation,
phase-shift keying, and pulse amplitude modulation
communications systems.We study the performance of a standard
CFO estimate, which consists of first raising the received signal to
the Mth power, where M is an integer depending on the type and
size of the symbol constellation, and then applying the nonlinear
least squares (NLLS) estimation approach. At low signal-to noise
ratio (SNR), the NLLS method fails to provide an accurate CFO
estimate because of the presence of outliers. In this letter, we derive
an approximate closed-form expression for the outlier probability.
This enables us to predict the mean-square error (MSE) on CFO
estimation for all SNR values. For a given SNR, the new results
also give insight into the minimum number of samples required in
the CFO estimation procedure, in order to ensure that the MSE
on estimation is not significantly affected by the outliers. Platform: |
Size: 1265664 |
Author:吴大亨 |
Hits:
Description: 关于最小频移键控的五篇很好的文章：GMSK调制信号的仿真.caj，MSK数字化调制解调技术研究.nh，最小频移键控系统实现技术的仿真研究(1).caj，最小频移键控系统实现技术的仿真研究.caj，最小移频健控信号的特点分析.caj-Minimum Shift Keying on the five good article: GMSK modulation signal simulation. Caj, MSK modulation and demodulation of digital technology research. Nh, Minimum Shift Keying System Simulation Technology (1). Caj, the smallest Frequency Shift Keying System Simulation Technology. caj, the smallest frequency shift Keying signal characteristics analysis. caj Platform: |
Size: 3237888 |
Author:刘东娜 |
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Description: GMSK是高斯滤波的最小频移键控的简称，基本的工作原理是将基带信号先经过高斯滤波器成形，再进行最小频移键控(MSK)调制。由于成形后的高斯脉冲包络无陡峭边沿，亦无拐点，因此频谱特性优于MSK信号的频谱特性。-GMSK Gaussian filter is the smallest FSK abbreviation, the basic working principle is to base-band signal to pass Gaussian filter shape, and then a minimum frequency shift keying (MSK) modulation. After forming as a result of the Gaussian pulse envelope without the steep edge, there is no inflection point, so the spectrum characteristics of the spectrum than MSK signal characteristics. Platform: |
Size: 1731584 |
Author:朱书洪 |
Hits:
Description: 基于Systemview的通信系统的仿真
主要是运用Systemview软件对二进制振幅键控（2ASK）系统、二进制移频键控（2FSK）系统、二进制移相键控（2PSK）系统以及二进制差分相位键控（2DPSK）系统进行设计，然后对设计的系统进行仿真，这其中分别包括它们的调制和解调系统。-Systemview based simulation of communication systems is the use of software Systemview binary amplitude shift keying (2ASK) system, the binary frequency shift keying (2FSK) system, the binary phase shift keying (2PSK) systems, as well as differential binary phase shift keying (2DPSK) system design, and then design a system simulation, which, respectively, including their modulation and demodulation system. Platform: |
Size: 877568 |
Author:lsp |
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Description: .FSK、PSK、ASK调制原理 在数字通信系统中，数字基带信号通常要经过数字调制后再传输。常见的调制方式有频移键控（FSK）、相移键控（PSK）、幅移键控（ASK）-. FSK, PSK, ASK modulation principle in digital communication systems, digital baseband signal is usually subject to digital modulation and then transmitted. Common modulation methods are frequency-shift keying (FSK), phase shift keying (PSK), amplitude shift keying (ASK) Platform: |
Size: 157696 |
Author:xu |
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Description: digital modulation of the bit sequence, frequency modulation, amplitude modulation, phase shift keying, frequency shift keying Platform: |
Size: 1024 |
Author:sherry |
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Description: 现代通信原理课程中，在MATLAB中实现二进制频移键控调制程序。-Modern communication theory course, to implement in MATLAB binary frequency shift keying modulation program. Platform: |
Size: 55296 |
Author:李芳 |
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Description: Amplitude-shift keying (ASK) is a form of modulation that represents digital data as variations in the amplitude of a carrier wave.
Any din scheme uses a finite number of distinct signals to represent digital data. ASK uses a finite number of amplitudes, each assigned a unique pattern of binary digits. Usually, each amplitude encodes an equal number of bits. Each pattern of bits forms the symbol that is represented by the particular amplitude. The demodulator, which is designed specifically for the symbol-set used by the modulator, determines the amplitude of the received signal and maps it back to the symbol it represents, thus recovering the original data. Frequency and phase of the carrier are kept constant Platform: |
Size: 52224 |
Author:saikiran reddy |
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