Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Comb Filter"”.
-
Strain sensor using fiber bragg grating interrogation
… reflected light of FBG as input to sagnac loop filter (SLF) is experimentally demonstrated in this work. The proposed SLF has been employed for intensity interrogation of FBG strain sensor where the polarization maintaining fiber (PMF) serves as an edge filter. By monitoring the optical power …
-
Theory, design and implementation of a digital receiver for the Advanced Communications Technology Satellite (ACTS) beacons
… system) in 2 seconds. The receiver then uses a comb filter, two FIR filters and additional FFTs to produce power measurements accurate to 0.1 dB at signal-to-noise ratios down to 5 dB in a 20 Hz bandwidth (18 dBHz in a 1 Hz bandwidth, -31 dB relative to clear air conditions on the APT system) at …
-
Monitoring railway rail roughness using on-train vibration measurements
… of the roughness itself; this vibration is filtered from the roughness by the dynamic behaviour of the vehicle-track system, and so signal processing techniques are required to calculate roughness from the measurements. This thesis proposes and evaluates three techniques aiming to solve some …
-
Adaptive approaches to signal enhancement and deconvolution (with particular reference to reflection seismology)
… One, dubbed the generalised comb filter is designed for the<br/>enhancement of signals which may be considered to consist of a series of<br/>slowly time-varying wavelets of unknown form, recurring at roughly constant<br/>intervals and embedded in random noise with unknown …
-
The Removal Of Motion Artifacts From Non-invasive Blood Pressure Measurements
… frequency domain. Hence, we designed a digital filter that could take advantage of the periodic nature of the Blood Pressure Signal waveform. The filter is shaped like a comb with periodic peaks around the signal frequency components. Further processing of the filtered signal: baseline …