1
Russell K Johnson: Separated GPS sensor and processing system for remote GPS sensing and centralized ground station processing for remote mobile position and velocity determinations. Radix Technologies, Thomas E Schatzel, May 30, 1995: US05420592 (238 worldwide citation)

A rawinsonde system embodiment of the present invention includes a digital GPS snapshot buffer and a serial communications controller for transmitting message frames formed of a combination of digital GPS data from the snapshot buffer and digitized hardwired meteorological data input from a humidity ...


2
Russell K Johnson: Direct sequence spread spectrum receiver and antenna array for the simultaneous formation of a beam on a signal source and a null on an interfering jammer. Radix Technologies, Thomas E Law Offices of Thomas E Schatzel a Prof Corporation Schatzel, December 2, 1997: US05694416 (80 worldwide citation)

A navigation satellite receiver that nulls interference and enhances satellite signals using differences in their spatial positions and that includes four antennas in a spatial array respectively connected to four amplitude and phase balanced receiver downconverter channels. Five satellite tracking ...


3
Briang Agee: Stacked-carrier discrete multiple tone communication technology. Radix Technologies, zhang wei, August 29, 2001: CN98814242

A "stacked-carrier" spread spectrum communication system based on frequency domain spreading that multiplies a time-domain representation of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred (FFT). This provides a considerable savings in computati ...


4
Bruzzone Stephen, Shanafelt Robert: Wideband interference cancellation using dsp algorithms. Radix Technologies, Bruzzone Stephen, Shanafelt Robert, SMYTH Anthony G, July 12, 2007: WO/2007/078282

A method and system is provided for detecting and characterizing pulsed threat radar emitters through heavy in-band interference. System includes an advanced digital signal processing method provides spatial and temporal interference cancellation, super-resolution direction-finding, and high resolut ...