Multi-driver loudspeaker systems may have complex phase distortions, caused or corrected by crossovers, driver placement, and the phase behaviour of the specific driver.
22.
To solve the problem of differential phase distortion in PAL system, the polarity of both the colorburst and the color signal are reversed in each consecutive frame.
23.
Oscillator waveforms may be modulated in a number of ways : ring modulation ( AM ), phase distortion ( PD ), or Frequency Modulation ( FM ).
24.
As this constant determines the signal propagation speed, frequency dependence introduces phase distortion in wideband applications; as flat dielectric constant vs frequency characteristics as achievable is important here.
25.
Thus, there is an octave over which the dominant mode is free of spurious modes, although operating too close to cutoff is usually avoided because of phase distortion.
26.
For instance, it may be required to filter one band with the sharpest possible cut-off, but in another to minimise phase distortion while still achieving some attenuation.
27.
When all phase distortions have been eliminated, the pulses are the shortest they can be and are considered to be Bandwidth-limited-pulse | transform limited ( TL ).
28.
Among the most popular waveform synthesis techniques are subtractive synthesis, additive synthesis, wavetable synthesis, frequency modulation synthesis, phase distortion synthesis, physical modeling synthesis and sample-based synthesis.
29.
His work led him and co-workers like and Dr . Kruse to devise a new color television system that automatically corrected for the differential phase distortion that can occur along the transmission channel.
30.
If differential modulation such as DPSK or DQPSK is applied to each sub-carrier, equalization can be completely omitted, since these non-coherent schemes are insensitive to slowly changing amplitude and phase distortion.
