| US 7,541,976 B2 | ||
| System and/or method for estimating speed of a transmitting object | ||
| Hong Zhang, Edison, N.J. (US); and Ali Abdi, New Milford, N.J. (US) | ||
| Assigned to New Jersey Institute of Technology, Newark, N.J. (US) | ||
| Filed on Oct. 20, 2006, as Appl. No. 11/551,685. | ||
| Application 11/551685 is a continuation in part of application No. 11/336301, filed on Jan. 20, 2006. | ||
| Claims priority of provisional application 60/645577, filed on Jan. 20, 2005. | ||
| Prior Publication US 2007/0126636 A1, Jun. 07, 2007 | ||
| Int. Cl. G01S 3/02 (2006.01) | ||
| U.S. Cl. 342—461 [342/377; 342/378] | 35 Claims |
| 1. A method comprising:
receiving at an array of multiple antenna elements a radio frequency signal transmitted by a moving object;
estimating a speed of said moving object based, at least in part, on a spatial cross-correlation among characteristics of
signals received at individual ones of said multiple antenna elements; and
comparing the estimated speed against a threshold to determine the quality of the estimated speed.
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