- Aerospace and Defence
- Asareeri - High Data Rate Modulator & Demodulator for Satellite, Defense and Aerospace
Asareeri - High Data Rate Modulator & Demodulator for Satellite, Defense and Aerospace
The High Data Rate Modem, supporting information data rates up to 4Mbps, implements a transmitter with BPSK/QPSK/SQPSK modulator with channel coding (FEC). It also implements a receiver with BPSK/QPSK/SQPSK demodulator and Doppler shift/Doppler Rate correction techniques.
Key Features:
- Implements Reed Solomon encoder and Convolutional encoder for channel encoding, including concatenated coding
- Implements pulse shaping filter
- Implements insertion of preamble/header
- Implements PRBS Data generator (used in test mode)
- Implements Reed Solomon decoder and Viterbi decoder(Hard Decision and Soft decision)
- Implements detection of preamble/header
- Implements either one of Early Late Gate or Gardner Symbol Timing Recovery
- Implements phase ambiguity detection and correction
- Implements PRBS data analyser
- Implements BER rate calculator and EVM calculator (used in test mode)