We present how the laser diode (LD) current tuning induced intensity modulation affects the performance of an open-loop resonator fibre optic gyro (R-FOG) with sinusoidal wave modulation. The expression for the demodulation curve under intensity modulation caused by the dynamic input rotation angular rate and varied environmental factors induced resonance frequency drift is provided. Numerical ...

The engineered algorithms are presented for the detection of parasitic frequency modulation in audio originating from irregularities of sound carrier velocity. The algorithms were developed with special regard to non-periodic frequency modulation effects found in old movie sound tracks. The proposed algorithms consider the influence of the wow disturbance on the location of formants in time-fre...

In time-varying frequency selective channels, to obtain high-rate joint time-frequency diversity, linear dispersion coded orthogonal frequency division multiplexing (LDC-OFDM), has recently been proposed. Compared with OFDM systems, single-carrier systems may retain the advantages of lower PAPR and lower sensitivity to carrier frequency offset (CFO) effects, which motivates this paper to invest...

The analysis of heart rate variability (HRV) has been used as a tool to evaluate the presence of the cardiovascular risks. As described in several studies the psoriasis and cardiovascular risk are strictly related. In our previous study we used the HRV variability for to demonstrate the increase of the cardiovascular risk in the moderate psoriasis. Present study has been designed to test whethe...

The traditional approach of improving radar range resolution using a linear frequency modulated chirp signal requires the full width of the frequency spectrum, which is not feasible in the UHF band due to interference or frequency allocation for other purposes. In this study a linear frequency modulated chirp signal is approximated using two stepped-frequency pulse train waveforms, a continuous...

Common-mode choke (CMC) plays an important role in suppressing the leakage current produced during operation of pulse width modulation (PWM) inverters. However, when common-mode path exhibits a large series stray capacitance, particularly capacitance by long shielded cables, CMC core reaches magnetic saturation. This paper presents technique selecting suitable carrier frequency for inverter to ...

In this work we present a new scenario of analyzing and separating linear mixtures of musical instrument signals. When instruments are playing in unison, traditional source separation methods are not performing well. Although the sources share the same pitch, they often still differ in their modulation frequency caused by vibrato and/or tremolo effects. In this paper we propose source separatio...

In this article the contribution of the digital RD modulator in fractional frequency synthesizers is explored. Due to the circuit’s non linear behavior, the spur tones generated by the digital RD modulation degrade the synthesizer’s phase noise even in regions where the charge pump noise is dominant. A new method to dither digital MASH RD modulators for fractional frequency synthesizers is prop...