Accurate Phase Angle Measurement of Backscatter Signal under Noisy Environment
نویسندگان
چکیده
Backscatter communication is an emerging wireless access technology to realize ultra-low power terminals exploiting the modulated reflection of incident radio wave. This paper proposes a method measure phase angle backscatter link using principal component analysis (PCA). The measurement at receiver essential maximize signal quality for subsequent demodulation and distance arrival. drawback popular with naive averaging linear regression produce erroneous angle, where close $\pm\frac{\pi}{2}$ radian poor. advantage proposal quantified computer simulation, conducted experiment propagation experiments.
منابع مشابه
Accurate Angle-of-Arrival Measurement Using Particle Swarm Optimization
As one of the major methods for location positioning, angle-of-arrival (AOA) estimation is a significant technology in radar, sonar, radio astronomy, and mobile communications. AOA measurements can be exploited to locate mobile units, enhance communication efficiency and network capacity, and support location-aided routing, dynamic network management, and many location-based services. In this p...
متن کاملSimulation Of Echo Cancellation Of Speech Signal In Noisy Environment
Acoustic echo cancellation is important for audio teleconferencing when simultaneous communication of speech is necessary. In acoustic echo cancellation, a measured microphone signal contains two signals such as the near-end speech signal and the far-end echoed speech signal. The goal is to remove the far-end echoed speech signal from the microphone signal so that only the near-end speech signa...
متن کاملBlind signal separation of vocal signals taken in noisy environment
The separation of independent sources from mixed observed data is a fundamental and challenging signal processing problem. A method for directly extracting clean speech features from noisy speech is implemented. This process is based on independent component analysis (ICA) and a new feature analysis technique to reduce the computational complexity of the frequency-domain ICA. For noisy speech s...
متن کاملMeasuring the robustness of link prediction algorithms under noisy environment.
Link prediction in complex networks is to estimate the likelihood of two nodes to interact with each other in the future. As this problem has applications in a large number of real systems, many link prediction methods have been proposed. However, the validation of these methods is so far mainly conducted in the assumed noise-free networks. Therefore, we still miss a clear understanding of how ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
سال: 2023
ISSN: ['1745-1337', '0916-8508']
DOI: https://doi.org/10.1587/transfun.2022smp0004