Control modules

摘要

A circuit is provided comprising detector circuitry, calculating circuitry, and determining circuitry. The detector circuitry is figured to generate an I data signal magnitude value of a sampled I data signal and a Q data signal magnitude value of a sampled Q data signal. The calculating circuitry is configured to calculate a phase shift angle φI between first and second equal and constant or substantially equal and constant envelope constituents of the sampled I data signal and to calculate a phase shift angle φQ between first and second substantially equal and substantially constant envelope constituents of the sampled Q data signal. The determining circuitry is configured to determine in-phase and quadrature amplitude information of the substantially equal and substantially constant envelope constituents of the sampled I signal and to determine in-phase and quadrature amplitude information of the first and second substantially equal and substantially constant envelope constituents of the sampled Q signal.

主权项

1. A system comprising:
a magnitude detector configured to generate I and Q magnitude values of sampled I and Q envelope components of a baseband signal; a vector modulator transfer function module configured to generate constant envelope constituents corresponding to each of the sampled I and Q envelope components: a baseband magnitude generator configured to generate a magnitude of the baseband signal based on the I and Q magnitude values; determining circuitry configured to determine a phase shift angle φ between the constant envelope constituents corresponding corresponding to each of the sampled I and Q envelope components and to use the determined phase shift angle φ to calculate in-phase and quadrature amplitude information; and normalizing circuitry configured to normalize the I and Q magnitude values.