Room 7: Interleaved Continuous Conduction Mode Power Factor Correction Boost Converter with Improved Modulated Carrier
Control Method, by H.
ADI s 14-bit dual-channel AD9117, 16-bit dual-channel AD9122 and 14-bit single-channel AD9739 transmit DACs were designed for signal synthesis applications, including pulse-modulated waveform generation and for synthesizing the modulated carrier
in quadrature digital architectures.
This modulated carrier
then feeds the antenna that radiates the data.
These simple pulses can be detected at increased distances by a factor of over ten relative to a modulated carrier
The resulting data set is large in comparison to linear network parameters, particularly when the input is similar to a digitally modulated carrier
It accepts complex I/Q input data, upsamples the data, quadrature-modulates the data onto a carrier, and outputs a frequency-agile modulated carrier
in the analog domain.
Unlike conventional wireless systems, which use narrowband modulated carrier
waves to transmit information, Ultra-Wideband transmits over a wide swath of radio spectrum, using a series of very narrow and low-power pulses.
Performance information available from transponders include upstream/downstream RF frequencies and power levels, modulation, bandwidth, upstream packet loss rate, pre/post FEC error rates, and downstream signal-to-noise and modulation error ratios (SNR/MER) that are used to gauge the health of a digitally modulated carrier
The output from the 2029 is a digitally modulated carrier
The flexible, programmable architecture of the HD49429F's digital modulator can provide a modulated carrier
from 1 to 42 MHz using a programmable numerically controlled oscillator (NCO) that has very high resolution.
Unlike commonly used, transient simulation programs, which treat modulated radio-frequency (RF) waveforms as pure time-domain signals, the Circuit Envelope simulator does not require an excessive number of time points to sample the RF modulated carrier
Low phase noise for transmission of QAM modulated carriers