To response the practical and theoretical challenges, we design a new modulation scheme by introducing the random pulse position keying technique into SCM [16].
For this purpose, the unwanted DC and modulation components in the detected spectrum can be efficiently removed by introducing a phase modulation in the reference arm [ 9, 10], for which we use an oscillating reference mirror.
We found that the sorting performance was improved by introducing temporal modulation on the potential landscape.
By introducing the rotated modulation and space-time component interleaver, the proposed scheme jointly optimizes channel coding, modulation, and MIMO and can improve the link reliability and energy efficiency.
By introducing the theta modulation technique into the diffractive-imaging-based optical scheme, we propose a novel approach for color image encryption.
This dynamic change of signal amplitude can be significantly reduced by introducing sinusoidal frequency modulation signals which has very important significance on improving the transmission performance of wireless sensor networks and reducing the device costs of nodes.
More specifically, when the carrier arrives at the receiver with a particular phase, the dynamic change of this signal amplitude can be significantly reduced by introducing sinusoidal frequency modulation signals.
By introducing a slow modulation to an ordinary interferometer, accurate measurement of the maximum intensity change corresponding to the small vibration at the most sensitive quarter-wavelength point can be achieved by measuring the envelope amplitude of the modulated vibration signal.
The presented SPR interferometry method is a relatively straightforward way of enhancing the sensitivity of classical intensity-based SPR biochemical sensing, by introducing SPs phase modulations in the measurements.
Coding gain is obtained by introducing the so-called modulation diversity in the signal set, which results in a particular type of bandwidth efficient diversity technique.
