2 results match your criteria: "National Chung-Shang Institute of Technology[Affiliation]"

Article Synopsis
  • Frequency hopping spread spectrum (FHSS) is a communication technique that rapidly changes frequencies to enhance signal quality and secure data transmission.
  • This research developed a method to accurately identify hopping times within FHSS signals using a two-dimensional temporal correlation function (TCF) and various processing techniques to improve detection in noisy settings.
  • Results from extensive Monte Carlo simulations showed that the new approach achieved reliable hopping time estimation with a significantly reduced false detection rate compared to previous methods.
View Article and Find Full Text PDF

Linear frequency modulation (LFM) waveforms have high Doppler-shift endurance because of the relative wide modulation bandwidth to the Doppler variation. The Doppler shift of the moving objects, nevertheless, constantly introduces obscure detection range offsets despite the exceptional Doppler tolerance in detection energy loss from LFM. An up-down-chirped LFM waveform is an efficient scheme to resolve the true target location and velocity by averaging the detection offset of two detection pairs from each single chirp LFM in opposite slopes.

View Article and Find Full Text PDF