Epoch-variant holographic communications apparatus and methods
First Claim
1. Radio frequency communications apparatus adapted to holographically encode baseband data using at least one dithered clock source, and transmit said encoded data.
1 Assignment
0 Petitions
Accused Products
Abstract
Improved apparatus and methods for utilizing holographic waveforms for a variety of purposes including communication, ranging, and detection. In one exemplary embodiment, the holographic waveforms are transmitted over an RF bearer medium to provide, inter alia, highly covert communications, radar systems, and microwave data links. The bearer (i.e., carrier) is optionally frequency-hopped, and various pulse modulation techniques (including variation of the phase-coding clock epoch) applied in order to further increase communications efficiency and covertness. Methods of providing multiple access and high bandwidth data transmission are also disclosed. Improved apparatus utilizing these features; e.g., a wireless miniature covert transceiver/locator, are also disclosed.
83 Citations
20 Claims
- 1. Radio frequency communications apparatus adapted to holographically encode baseband data using at least one dithered clock source, and transmit said encoded data.
- 12. Radio frequency communications apparatus adapted to receive and decode holographically encoded signals, said holographically encoded signals being coded at least in part using a first dithered clock source.
-
16. LPI communications apparatus, comprising:
-
processing apparatus adapted to process baseband data;
clocking apparatus adapted generate a time-dithered clock signal;
transmitter apparatus adapted to transmit signals;
wherein said processing apparatus is configured to, prior to transmission by said transmission apparatus;
phase-code said baseband data according to a first phase code and said time-dithered clock signals; and
mathematically transform said phase-coded data to produce said signals. - View Dependent Claims (17, 18, 19, 20)
-
Specification