Narrow-band integer cycle or impulse modulation spectrum sharing method
View Patent ↗A method of transmitting and receiving a narrow band integer cycle or impulse modulated signal for spectrum sharing comprising modulating a carrier with a first digital data stream using an integer cycle or impulse modulator then selecting a portion of the sideband of this RF modulated signal for transmission. Next modulating the carrier with a second digital data stream using an integer cycle or impulse modulator and selecting a different portion of the sideband of this second RF modulated signal for transmission. Finally combining and filtering the first and second RF modulated signals to remove all of the first and second RF modulated signals except the selected sideband portions and the carrier which creates a low power signal when transmitted. The transmitted signal is then demodulated through use of a wavelet pass filter which nulls all received RF signals except the low power RF signal when there is digital data present thus allowing for reconstruction of the first and second digital data streams.
1. A method of transmitting and receiving a narrow band integer cycle or impulse modulated signal comprising:
modulating a carrier with a digital data stream using an integer cycle or impulse modulator creating a RF modulated signal;
selecting a portion of the sideband of said RF modulated signal;
filtering said RF modulated signal to remove all of said RF modulated signal except said carrier and said selected sideband portion creating a low power RF signal;
transmitting said low power RF signal;
receiving said low power RF signal; and,
demodulating said low power RF signal through use of a wavelet pass filter which nulls all received RF signals except said low power RF signal when there is digital data present on said low power RF signal resulting in a demodulated signal that is present only as long as the digital data is present on said low power modulated signal thus allowing for reconstruction of said digital data stream.
2. The method of claim 1 wherein band pass filters are used to filter said RF modulated signal.
3. The method of claim 1 wherein said carrier is also filtered and removed from said RF modulated signal.
4. A method of transmitting and receiving a narrow band integer cycle or impulse modulated signal for spectrum sharing comprising:
modulating a carrier with a first digital data stream using an integer cycle or impulse modulator creating a first RF modulated signal;
selecting a portion of the sideband of said first RF modulated signal;
modulating said carrier with a second digital data stream using an integer cycle or impulse modulator creating a second RF modulated signal;
selecting a different portion of the sideband of said second RF modulated signal;
combining and filtering said first and second RF modulated signals to remove all of said first and second RF modulated signals except said carrier and said selected sideband portions creating a low power RF signal;
transmitting said low power RF signal;
receiving said low power RF signal; and,
demodulating said low power RF signal through use of a wavelet pass filter which nulls all received RF signals except said low power RF signal when there is digital data present on said low power RF signal resulting in a demodulated signal that is present only as long as the digital data is present on said low power modulated signal thus allowing for reconstruction of said first and second digital data streams.
5. The method of claim 4 wherein band pass filters are used to filter said first and second RF modulated signal.
6. The method of claim 4 wherein said carrier is also filtered and removed from said first and second RF modulated signal.