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% <<../NRHDLMATLABRefTop.png>> % %% Cell Search % % Cell search consists of carrier frequency recovery, primary synchronization signal (PSS) search, % OFDM demodulation, and secondary synchronization signal (SSS) search. % The Search Controller and the SS...
radiocorrelationdspasknfcsdrradio-frequencyairspydemodulationnfc-forumiso14443anfc-tagiso14443bbpskcorrelation-analysisfelica-cardnfc-anfc-bnfc-viso15963 UpdatedMar 20, 2025 C++ roccomuso/iot-433mhz Star338 Code Issues Pull requests 🌐 IoT System to control 433 MHz RC power sockets, PIR, Door Sen...
Mod Modulation, R/C Real to complex conversion, C/R Complex to real conversion, De-Mod Demodulation, Dec Detection, BER Bit error rate, MSE Mean squared error, OFDM Orthogonal frequency division multiplexing, NOFS Non-orthogonal frequency shaping. Full size image In conventional communication syste...
Fig. 8.Block diagrams of the modulation and demodulation processes of OFDM that take place at the transmitter and receiver ends, respectively. OFDM has been extensively used in broadband wired andwireless communicationsas it is robust against ISI and scales well with increasing data rates (Armstrong...
I'm currently facing an issue with signal demodulation when using a sampling rate of 200Msps and 20 samples per symbol. I keep encountering the error: "Fine Frequency error estimation failed." Previously, I was able to process signals with a sampling rate of 20Msps an...
The network model inputs the super-low frequency modulation signal sequence with the size of 20 * 20 and outputs the demodulation signal with the size of 4 * 1. Firstly, 3200 super-low frequency BFSK modulated signals and corresponding original binary signals were obtained through MATLAB ...
3.9.3.3 Frequency demodulation Frequency demodulation consists of recovering the signal that carries the information or modulating signal that is carried by the variations of the carrier frequency. To this end, we make use of the synoptic diagram, based on a PLL, in Figure 3.82. Sign in to dow...
2.In the QPSK demodulation′s system,many factors can cause the carrier′sfrequency offsetand phase error,such as Dopplerfrequency offset,the centralfrequency offsetof the receiver′s local oscillator and the phase noise.针对这一误差,介绍了开环系统中频差校正原理,然后通过滑动窗口求均值的方法实现平均...
Book 2011, Signals and Systems using MATLABLuis F. Chaparro Chapter Radio communication techniques 9.4 Frequency modulation (FM) and demodulation In frequency modulation, the amplitude of the modulated wave is kept fixed, but the frequency is varied by the modulating signal (see Figure 9.14). Note...