The low signal-to-noise ratio (SNR) of the magneto–acoustic signals limits the image quality of the magneto–acoustic imaging. A chirp coded excitation signal processing method for magneto–acoustic imaging is proposed in this paper. The SNR of magneto–acoustic signal is improved. In this ...
Shtengel, Gleb E.,Kazarinov, Rudolf F.,Belenky, Gregory L.,Reynolds Jr., C.L.Wavelength chirp and dependence of carrier temperature on current in MQW InGaAsP-InP lasers. IEEE Journal of Quantum Electronics . 1997Gleb E.Shtengel,Rudolf F.Kazarinov,"Wave Length Chirp and Dependence of ...
Shtengel, Gleb E.,Kazarinov, Rudolf F.,Belenky, Gregory L.,Reynolds Jr., C.L.Wavelength chirp and dependence of carrier temperature on current in MQW InGaAsP-InP lasers. IEEE Journal of Quantum Electronics . 1997Gleb E.Shtengel,Rudolf F.Kazarinov,"Wave Length Chirp and Dependence of ...
Impact on the chirp effect of the shaped electrical-driven current of the directly-modulated 1.55μm VCSEL in an optical fiber linkdoi:10.1016/j.optcom.2018.11.056Carmina del Río CamposAntonio ConsoliJosé Manuel del Río CamposPaloma R. Horche...
Use of a chirp waveform in pulsed eddy current crack detection[J]. Review of Progress in Quantitative Nondestructive Evaluation, 1987(6A):467-469.Beissener R E,Fisher J L.Use of a chirp waveform inpulsed eddy current crack detection. Review ofProgress in Quantitative Nondestructive Evaluation ....
Examines the effect of nonuniform current injection on the frequency chirp of distributed feedback lasers. Effects of carrier density fluctuations on the chirp; Reduction of frequency chirp through computer stimulation; Suppression of spatial hole burning.Feng...
Chirp Reduction and Bandwidth Enhancement for Direct Current Modulation in an Optically Injected Semiconductor Laser(060.4510) optical communications(140.5960) semiconductor lasersinjection lockingdirect modulationfrequency chirpingmodulation bandwidthA directly modulated semiconductor laser when subject to optical ...
The Chirp Z Transform (CZT) has been applied to extract the features of HIF and/or other usual network events signal. It is possible to appropriately detect fault by low order harmonics of current signal extracted by means of CZT. Maximum discrepancy of detection is nearly 7 ms which is ...
Betta, G.; Ferrigno, L.; Laracca, M.; Burrascano, P.; Ricci, M.; Silipigni, G. An experimental comparison of multi-frequency and chirp excitations for eddy current testing on thin defects. Measurement 2015, 63, 207-220. [CrossRef]...
Chirp Reduction and Bandwidth Enhancement for Direct Current Modulation in an Optically Injected Semiconductor Laseroptical communicationssemiconductor lasersinjection lockingdirect modulationfrequency chirpingmodulation bandwidthA directly modulated semiconductor laser when subject to opti...