System and method for improved noise immunity in impulse and radar communications systems
First Claim
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1. A method of improving noise immunity in a signal, the method comprising:
- receiving a multi-bit symbol comprised of pulses and absences of pulses;
incrementing a correlation count if a pulse is present when a pulse is expected; and
decrementing the correlation count if a pulse is present when a pulse is not expected.
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Abstract
A method of improving noise immunity in a signal is provided. The method comprises receiving a multi-bit symbol comprised of pulses and absences of pulses, incrementing a correlation count if a pulse is present when a pulse is expected, and decrementing the correlation count if a pulse is present when a pulse is not expected.
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Citations
22 Claims
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1. A method of improving noise immunity in a signal, the method comprising:
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receiving a multi-bit symbol comprised of pulses and absences of pulses;
incrementing a correlation count if a pulse is present when a pulse is expected; and
decrementing the correlation count if a pulse is present when a pulse is not expected. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A computer program product, comprising:
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a computer-usable medium having computer-readable instructions embodied therein for configuring a computer processor, the computer program product comprising;
first instructions configured to cause a computer processor to compare a received multi-bit symbol comprised of pulses and absences of pulses to an expected pattern of pulses and absences of pulses;
second instructions configured to cause a computer processor to increment a correlation count when the received multi-bit symbol matches the expected pattern;
third instructions configured to cause a computer processor to decrement the correlation count when the received multi-bit symbol does not match the expected pattern; and
fourth instructions configured to cause a computer processor to compare the correlation count to a threshold value. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A communications system, comprising:
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a transmit device adapted to transmit a multi-bit symbol, the transmit device being adapted to modulate the multi-bit symbols using a pulse-based modulation scheme; and
a receiving device adapted to accept the received multi-bit symbol when a correlation count exceeds a threshold value and reject the received multi-bit symbol when the correlation count does not exceed the threshold value, wherein the receiving device increments the correlation count if a pulse is present when expected and decrements the correlation count if a pulse is present when a pulse is not expected. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A communications system, comprising:
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means for transmitting a multi-bit symbol comprised of pulses and absences of pulses; and
means for receiving the multi-bit symbol, wherein the means for receiving the multi-bit symbol increments a correlation count when a pulse is present when a pulse is expected and decrements the correlation count when a pulse is present when a pulse is not expected. - View Dependent Claims (20, 21, 22)
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Specification