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RFX2401一款高性能PA 用于蓝牙、WLAN、Zigbee和MIMO设计的两个高度集中单芯片及单芯片解决方案是首个RF前端集成电路(RFeICs)。RFX2401主要应用于蓝牙1级和单端口Zigbee。该芯片在BiCMOS器件中集成了功率放大器、LNA、发送和接收开关电路、相关匹配网络、以及谐波滤波器。
前端的优越性能、高灵敏度和效率、低噪音、小型化和低成本使其非常适用于需要扩展范围和带宽的应用，这种扩散可能是10x的。RFX2401具有集成功率检测电路，只需一个外接电源电容器和用
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通过分析8PSK 调制方式的载波恢复、定时恢复算法, 提出了一种适用于新一代数字卫星电视标准DVB S2
的全数字解调算法, 改进了相位频率检测( PFD) 算法以适合于8PSK 解调. 载波恢复采用频率检测( FD) 和相位频率
检测相结合的结构, 跟踪范围超过1 倍符号率. 采用Gardner TED 算法进行定时恢复.-By analyzing the 8PSK modulation carrier recovery, timing recovery algori
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This application note describes the implementation of a dual tone multiple frequency (DTMF)tone generator and detector for the TMS320C54x . This application note provides some theoretical background on the algorithms used for tone generation a
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什么是信号调制？在测控系统中为什么要采用信号调制？什么是解调？在测控系统中常用的调制方法有哪几种？
-Coherent detection of fsk
Fsk modulation is characterized by the information being contained in the frequency of the carrier. What is the signal modulation? Has to use the signal modulation why i
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本文首先介绍了认知无线电的基本概念,对认知无线电在WRAN系统、UWB系统及WLAN系统等领域的应用分别进行了讨论。在此基础上,针对实现认知无线电的关键技术从理论上进行了探索,分析了影响认知网络正常工作的相关因素及认知网络对授权用户正常工作所形成的干扰。从理论上推导了在实现认知无线电系统所必须面对的弱信号低噪声比恶劣环境下,信号检测的相关方法和技术,并进行了数字滤波器的算法分析,指出了窗函数的选择原则。-The development of the wireless business resul
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<应用WVD估计AM_FM信号的瞬时频率>,该文研究了应用WVD谱峰检测估计AM-FM信号的瞬时频率的方法及其性能。-< Application WVD estimate AM_FM signal instantaneous frequency> This paper studies the application of WVD peak AM-FM signal detection estimates the instantaneous frequency method
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NON-COOPERATIVE DETECTION OF
FREQUENCY-HOPPED GMSK SIGNALS
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Modern wireless communication systems are expected to support high data rate, allowing users to access high quality multimedia content, anytime-anywhere. To support high data rate, wideband frequency channels are required. However, frequency selectiv
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Frequency-Domain Detection of OQPSK Signals
with Quasi-Constant Envelope and High Spectral
Efficiency
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MATlab code for frequency hole detection in cognitive radio
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基于随机共振原理的大频率微弱信号检测方法研究-Research large frequency weak signal detection method based on the principle of stochastic resonance
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频移随机共振在信号检测中的应用,关于随机共振的一篇很好文章，-Stochastic resonance frequency shift in signal detection applications
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< Channel, Phase Noise, and Frequency Offset in OFDM Systems Joint Estimation, Data Detection, and Hybrid Cramer-Rao Lower Bound>>-Channel, Phase Noise, and Frequency Offset in OFDM Systems Joint Estimation, Data Detection, and Hybrid Cramer
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This paper proposes a novel, highly effective spectrum
sensing algorithm for cognitive radio and white space
applications. The proposed spectral covariance sensing (SCS)
algorithm exploits the different statistical correlations of the received
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frequency offset invariant multiple symbol differential detection of MPSK.the objective is to design most robust receiver against random frequency variations.-frequency offset invariant multiple symbol differential detection of MPSK.the objective is
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利用TMS320VC5509A为核心的DSP处理硬件,通过软件实现自适应Notch滤波和瞬时频率序列方差检测(VIRD)运算,在较低信噪比使用条件下完成对单频测距信号的可靠检测和判定-Using tms320vc5509a DSP core processing hardware, adaptive notch filter and variance of instantaneous frequency sequence detection (Vird) operation is realize
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