Transpositional modulation
First Claim
Patent Images
1. A method of modulating a carrier signal, the method comprising:
- generating a transpositional modulation (TM) signal by;
generating a sinusoidal signal; and
modulating the sinusoidal signal based on a data signal to provide the TM signal;
inserting the TM signal into a carrier signal to provide a TM modulated carrier signal;
modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal; and
transmitting the combined signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that include the actions of generating a TM signal by generating a sinusoidal signal, and modulating the sinusoidal signal based on a data signal to provide the TM signal. Inserting the TM signal into a carrier signal to provide a TM modulated carrier signal. Modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal. Transmitting the combined signal.
-
Citations
20 Claims
-
1. A method of modulating a carrier signal, the method comprising:
-
generating a transpositional modulation (TM) signal by; generating a sinusoidal signal; and modulating the sinusoidal signal based on a data signal to provide the TM signal; inserting the TM signal into a carrier signal to provide a TM modulated carrier signal; modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal; and transmitting the combined signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A transmitter comprising:
-
a transpositional modulation (TM) signal generator configured to; receive a first data signal, and generate a TM signal by modulating a sinusoidal signal based on the first data signal to provide the TM signal; a non-TM signal modulator configured to modulate a carrier signal with a non-TM signal based on a second data signal; and an internal carrier modulator coupled to the TM signal generator and to the non-TM signal modulator, the internal carrier modulator configured to receive the TM signal from the TM signal generator and insert the TM signal into the carrier signal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A receiver comprising:
-
a frame-averaged signal estimator configured to; receive a combined signal comprising a carrier signal modulated with both a transpositional modulation (TM) signal and a non-TM signal, and determine average values of the combined signal over respective symbol frames of the non-TM signal; a non-TM signal demodulator coupled to the frame-averaged signal estimator and configured to demodulate the non-TM signal based on the average values of the combined signal; a TM signal separator coupled to the frame averaged-signal estimator and configured to separate the TM signal from the non-TM signal of the combined signal; and a TM signal demodulator coupled to the TM signal separator and configured to demodulate the TM signal. - View Dependent Claims (18, 19, 20)
-
Specification