Blind demodulation
WebThe blind demodulator first rough-demodulates a signal with a period T to obtain a quasi-baseband signal x (t), and it becomes a discrete sequence x (mTs) (T after a fixed clock sample with a local period Ts and T satisfy the Nyquist basic sampling law, and generally use four times the sampling, that is, Ts=1/4T. WebJan 1, 2015 · The theory analysis and experimental results indicate that the proposed scheme can achieve a high discrimination of modulation type and results in blind demodulation. Discover the world's research ...
Blind demodulation
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WebJan 1, 2024 · The proposed acceleration method can significantly improve the computational efficiency of blind demodulation methods. ... Blind image decomposition is an inverse problem that is much harder to be solved than non-blind image decomposition from noisy images, commonly producing staircase effects in flat regions and smoothing fine … WebAfter performing deinterleaving, deprecoding, symbol combining, symbol demodulation and descrambling at the receiver, the UE is required to perform blind decoding of the PDCCH payload as it is not aware of the detailed control channel structure, including the number of control channels and the number of CCEs to which each control channel is mapped.
WebJan 28, 2024 · Blind modulation classification (MC) is an integral part of designing an adaptive or intelligent transceiver for future wireless communications. Blind MC has … Webrecovery and blind demodulation problems appear in many applications including medical imaging, super resolution, self-calibration, etc. In this paper, we consider a more general …
Web(CFO). The blind demodulator’s performance in AWGN and a perfect channel is evaluated where it improves using a greater number OFDMA Downlink (DL) symbols and increased Cyclic Prefix (CP) length. Performance in a channel with a single multi-path interferer is also evaluated where the blind demodulator’s performance is degraded. WebMay 29, 2024 · Abstract: In digital communications, the accurate estimation of symbol rate is extremely important for both blind demodulation of non-cooperative communications and radio spectrum monitoring. An instantaneous frequency symbol rate estimation method is proposed in this paper for the QPSK signals. The method determines the symbol rate of …
Webto extend existing blind demodulation techniques to multi-tone waveforms such as MIL-STD-188-110B (Appendix B) and OFDM, developing a capability to identify signal types based on short data records, and maintaining robust-ness to channel effects. In this paper, we report on the first phase of our approach, namely, building a coarse classifier
WebJun 19, 2024 · The estimation results of DPN along with its blind decoding performance are shown to outperform a blind signal processing algorithm for BPSK and QPSK on a simulated dataset. An over-the-air software-defined-radio capture was used to verify DPN results at high SNRs. DPN design can process variable length inputs and is shown to … cfl for vegetative growthWebIn addition, this is the core content of the paper—the blind identification of FEC coding types. Blind recognition of error-correcting code types is also of great significance to improve the accuracy and efficiency of code parameter recognition. ... as shown in Figure 1. It includes source coding, channel coding, modulator, demodulator, data ... cfl freed cfsWebThe process of demodulating an unknown wireless communication signal without knowledge of the channel state and modulation type is called the dual-blind demodulation problem. We focus on solving the dual-blind demodulation problem in the presence of multipath fading and noise. Traditional blind receivers have different functional blocks to … bxt 65 850 warrantyWebThis paper addresses the issue of blind multiple-input multiple-output (MIMO) demodulation of communication signals, with time-varying channels and in an interception context. A new adaptive-blind source … bxt 65-850 series motorcraft batteriesWebZhipengPan/Blind_demodulation. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. main. Switch branches/tags. Branches Tags. Could not load branches. Nothing to show {{ refName }} default View all branches. Could not load tags. Nothing to show bxt 65 850 motorcraftWebApplying the particle filter (PF) technique, this paper proposes a PF-based algorithm to blindly demodulate the chaotic direct sequence spread spectrum (CDS-SS) signals under the colored or non-Gaussian noises condition. To implement this algorithm, the PFs are modified by (i) the colored or non-Gaussian noises are formulated by autoregressive … cfl football weatherbxt6 bluetooth