Mobile Phase Recovering Equalizer

Overview

The Mobile Phase Recovering Equalizer (MPRE) FPGA core combines Channel Equalization, Phase Recovery, and Symbol Slicing in a single module. The MPRE is ideal for medium-to-high data rate applications where range, power efficiency, and reliability in mobile channels are desired. Advanced, patent pending, signal processing in the MPRE provides robust and reliable QPSK demodulation in high Doppler and mobile multipath environments. Mobile multipath radio environments that are too harsh for broadband single-carrier QPSK reception can be used reliably with the MPRE.

The MPRE fits easily into the signal flow of most single-carrier demodulators with a minimal amount of configuration and supporting input signals.

Key Features

17-tap complex-arithmetic LMS Channel Equalizer with adaptation bandwidth and leakage rate control as well as independent coefficient hold and reset controls
VV4 Quasi-Coherent Demodulator for signal phase recovery and differential detection
Integrated Symbol Slicer provides demodulated soft-decision outputs
AGC output controls in proportional and up/dn format for constant-modulus and phase-locked processing
Phase-locked constellation output
Equalized signal output for FLL or other processing
Clock rates up to 200 MHz supported
Symbol rates up to 1/5 of clock rate

Benefits

Survives mobile multipath fading with high-rate single-carrier modulation
Reduced PAPR compared to OFDM
Increased range
High performance in high-Doppler environments
Ideal for surveillance, mobile video, UAV, newsgathering, and many other applications

Block Diagram

Deliverables

Product License
EDIF core
Verilog Test Bench
Supporting C or Matlab/Octave code for test vector generation and analysis
Product Documentation

Technical Specifications

Maturity

Shipping, Field-proven

Availability

Now

Request Info