Impulse radio receiver and method for finding angular offset of an impulse radio transmitter
First Claim
1. An impulse radio receiver, comprising:
- a. an impulse radio;
b. a first antenna coupled to said impulse radio by a first coupling;
c. a second antenna coupled to said impulse radio by a second coupling; and
d. a receiver processor responsive to said impulse radio, said receiver processor enabled to locate the leading edges of impulse radio pulses and to approximate angular offset based upon arrival times of impulse radio pulses.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method for determining angular offset of an impulse radio transmitter using an impulse radio receiver coupled to two antennae. The antennae are separated by some known distance, and, in one embodiment, one antennae is coupled to the radio with cable delay. Impulse signals from the antennae are measured to determine the time difference of arrival of one such signal received by one antenna compared to that of the other antenna. Time differential is measured by autocorrelation of the entire impulse radio scan period, by detecting the leading edges of both incoming signals or various combinations of these methods. Using a tracking receiver, the pulses may be continuously tracked thus providing real time position information.
-
Citations
40 Claims
-
1. An impulse radio receiver, comprising:
-
a. an impulse radio;
b. a first antenna coupled to said impulse radio by a first coupling;
c. a second antenna coupled to said impulse radio by a second coupling; and
d. a receiver processor responsive to said impulse radio, said receiver processor enabled to locate the leading edges of impulse radio pulses and to approximate angular offset based upon arrival times of impulse radio pulses. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An impulse radio receiver comprising:
-
a. an impulse radio;
b. a first antenna coupled to said impulse radio by a first coupling;
c. a second antenna coupled to said impulse radio by a second coupling; and
d. a receiver processor responsive to said impulse radio, said receiver processor enabled to approximate angular offset based upon arrival times of impulse radio pulses. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. An impulse radio receiver comprising:
-
a. a first antenna and a second antenna;
b. a first impulse radio coupled to said first antenna;
c. a second impulse radio coupled to said second antenna;
d. a synchronizing signal generator having an output coupled to said first impulse radio and an output coupled to said second impulse radio; and
e. a processor having an input responsive to said first and said second impulse radios, said processor being enabled to locate the leading edges of impulse radio pulses and to approximate angular offset based upon arrival times of impulse radio pulses.
-
-
14. An impulse radio receiver comprising;
-
a. at least two antenna means;
b. a means for detecting impulse radio pulses having inputs coupled to said antenna means;
c. a means for determining the arrival times of said impulse radio pulses; and
d. a means for approximating the angle of arrival of said impulse radio pulses. - View Dependent Claims (15, 16, 17)
-
-
18. A method for finding angular offset of an impulse radio transmitter from an impulse radio receiver comprising the steps of:
-
a. receiving from a transmitter an impulse radio signal using an impulse radio receiver, said impulse radio receiver comprising a first antenna coupled to an impulse radio by a first coupling and a second antenna coupled to said impulse radio by a second coupling;
b. determining an arrival delay of a second pulse with respect to a first pulse, said first pulse being received by said first antenna and said second pulse being received by said second antenna; and
c. approximating an angle of arrival of said pulses with respect to a point between said first antenna and said second antenna based upon said arrival delay. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A method for finding angular offset of an impulse radio transmitter from an impulse radio receiver comprising the steps of:
-
a. receiving from a transmitter an impulse radio signal using an impulse radio receiver, said impulse radio receiver comprising a first antenna coupled to an impulse radio and a second antenna coupled to said impulse radio;
b. measuring the arrival time of a first leading edge of a first pulse, said first pulse being received by said first antenna;
c. measuring the arrival time of a second leading edge of a second pulse, said second pulse being received by said second antenna; and
d. approximating an angle of arrival of said pulses with respect to a point between said first antenna and said second antenna based upon the delay of said second leading edge with respect to said first leading edge. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A method for finding angular offset of an impulse radio transmitter from an impulse radio receiver comprising the steps of:
-
a. receiving from a transmitter an impulse radio signal using an impulse radio receiver, said impulse radio receiver comprising a first antenna coupled to a first impulse radio by a first coupling and a second antenna coupled to a second impulse radio by a second coupling, said first and second impulse radios being synchronously engaged;
b. determining an arrival delay of a second pulse with respect to a first pulse, said first pulse being received by said first impulse radio and said second pulse being received by said second impulse radio; and
c. approximating an angle of arrival of said pulses with respect to a point between said first antenna and said second antenna based upon said arrival delay. - View Dependent Claims (39, 40)
-
Specification