demodulate

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demodulate

[dē′mäj·ə‚lāt]

(communications)

To recover the modulating wave from a modulated carrier. Also known as decode; detect.

demodulate

To isolate a data signal from a carrier wave. The demodulation circuit uses the unmodulated carrier as a reference signal and compares it to the received signal. See modulation and carrier.

References in periodicals archive ?

In the PM-WFRFT scheme, both branch signals must be demodulated correctly to demodulate the confidential information.

Physical Layer Security Scheme Based on Polarization Modulation and WFRFT Processing for Dual-polarized Satellite Systems

This last interferogram was the most difficult to demodulate, because the search process of the HSO algorithm was slow due to the increase in iterations for the PAR and bw adjustment.

FSD-HSO Optimization Algorithm for Closed Fringes Interferogram Demodulation

While not perfect, the operation can find bugs and wiretaps, demodulate them, and sometimes locate their source.

Making a clean sweep of spies

After sometime, such system gained popularity after the digital approach used the Discrete Fourier Transform (DFT) and the correspondent Inverse Discrete Fourier Transform (IDFT) to demodulate and modulate the OFDM signal in N subcarriers, respectively.

OFDM System Implementation in DSP Platform TMS320C6678

(3) Demodulate the instantaneous amplitude and instantaneous frequency of each IMF using TEO.

Time-Frequency Analysis Based on Improved Variational Mode Decomposition and Teager Energy Operator for Rotor System Fault Diagnosis

The software then works to demodulate the contents within each of the messages between the ATU-R and the ATU-C to provide technical teams a comprehensive analysis of their product's performance.

Digital Signal Processing Experts at Inband Software Now Offering the ADSL Protocol Analyzer Software

Promax Electronica unveiled at the show a portable analyser to incorporate DVB-T2 technology, in order to analyse and demodulate all variants of DVB (DVB-T, DVB-T2, DVB- C, DVB-S and DVB-S2) in both SD and HD, including encrypted services.

Promax unveils portable analyser

Even someone with mirror Orthogon radios would be unable to capture and demodulate signals traveling across the air between the schools and the university.

University tries broadband wireless: distance learning is first application to test Texas A&M's distributed network strategy

Carrier-based technologies must modulate and demodulate a complex analog carrier waveform, and incorporate the componentry required to do so.

Ultra-Wideband technology to offer new opportunities for wireless video, networking, Part 2

Now we use the traditional demodulation method and our signed demodulation to demodulate signal x(t) = [x.sub.1](t)[x.sub.2](t) and give the comparison (see Figure 1).

Amplitude and Phase Analysis Based on Signed Demodulation for AM-FM Signal

Ideal for maintaining or installing transmitter systems, checking cables and antennas, and assessing transmitted signal quality, the FSH4 and FSH8 Series can also demodulate and analyze all signal bandwidths up to 20MHz that are defined in the LTE standard.

Rohde & Schwarz's FSH Series Handheld Spectrum Analyzer Designed for Field Maintenance

Therefore, the desired receiver can demodulate the receive signal as traditional digital modulation signal, while the undesired receivers cannot extract any useful information from the scrambled constellation.

RF directional modulation technique using a switched antenna array for communication and direction-finding applications