Rockwell Collins, Inc.

Avidyne Corporation

Sami R Wahab

Charles L Holecek

Constantinos S Kyriakos

Angelo J Joseph

The disclosure is directed to a universal tracking system configured for tracking a plurality of supported sources and/or signal types. The universal tracking system may include an acquisition module configured to execute a serial or parallel search to detect visible signals. The universal tracking system may include at least one universal channel capable of extracting tracking data from a plurality of supported signal types. The universal channel may include complex correlators configured to correlate digital samples associated with one or more ranging signals utilizing primary, sub-carrier, and/or secondary codes. The universal channel may be configured to determine tracking data associated with at least one ranging signal of the plurality of supported signal types. The universal tracking system may further include a navigation processor configured to determine location utilizing tracking data received from one or more universal channels.

Universal channel for location tracking system

An efficient voice activity detection method and system suitable for real-time operation in low SNR (signal-to-noise) environments corrupted by non-Gaussian non-stationary background noise. The method utilizes rank order statistics to generate a binary voice detection output based on deviations between a short-term energy magnitude signal and a short-term noise reference signal. The method does not require voice-free training periods to track the background noise nor is it susceptible to rapid changes in overall noise level making it very robust. In addition a long-term adaptation mechanism is applied to reject harmonic or tonal interference.

System and method of voice activity detection in noisy environments

A TCAS receiver/transmitter which uses an improved calibration scheme for improving the ability of the device to transmit in a narrow directional field where the device uses the transmitter frequency source to generate signals for calibration purposes. The calibration uses a technique of simultaneously transmitting from two antennas and manipulating the phase of the signal through successive settings. The signals are monitored by the remaining two antennas and calibration adjustments are made in response thereto.

TCAS transmitter phase tuning system and method

A TCAS receiver, including a relative bearing measurement radio receiving apparatus for use with an antenna array having four antennas where each antenna has associated with it, its own receiver capable of demodulating both I and Q components of transmissions from an intruding aircraft.

Growing community of inventors

Melbourne, FL, United States of America

Sami R Wahab