DATALINK THROUGHPUT REDUCTION VIA ENERGY DETECTION
First Claim
1. A receiver with reduced data link throughput, the receiver comprising:
- a first interface for receiving a wireless signal and for generating signal collection data, wherein the signal collection data includes signal data and non-signal data;
a processor for analyzing the signal collection data to identify portions of the data that include signal data and portions of the data that include only non-signal data;
a second interface for communicating information to an external device via a wireless data link; and
a controller for communicating only the portions of the data that include signal data to the second interface for communication to the external device via the wireless data link.
2 Assignments
0 Petitions
Accused Products
Abstract
A geolocation system (10) includes an emitter (12), a plurality of collection nodes (14,16,18), and a control station (20). Each collection node includes a receiver (24) that is operable to receive signals transmitted from the emitter (12), generate a reduced data stream that includes only signal data, and communicate the reduced data stream to the control station (20) along with navigation data. The receiver (24) identifies signal data by detecting an energy level of the raw collection data. More specifically, the receiver (24) determines a bandwidth and a signal-to-noise ratio of each portion of the collection data, and identifies each portion as including signal data if both the bandwidth and the signal-to-noise ratio exceed predetermined threshold amounts. The receiver (24) includes a digital signal processing component (36) for performing calculations used by the receiver (24) to determine the bandwidth and the signal-to-noise ratio.
21 Citations
24 Claims
-
1. A receiver with reduced data link throughput, the receiver comprising:
-
a first interface for receiving a wireless signal and for generating signal collection data, wherein the signal collection data includes signal data and non-signal data; a processor for analyzing the signal collection data to identify portions of the data that include signal data and portions of the data that include only non-signal data; a second interface for communicating information to an external device via a wireless data link; and a controller for communicating only the portions of the data that include signal data to the second interface for communication to the external device via the wireless data link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A geolocation system with reduced data link throughput, the system comprising:
-
a transmitter for transmitting a wireless signal; a plurality of mobile receiver platforms, wherein each platform includes a circuit for receiving the wireless signal and for generating collection data, wherein the collection data includes signal data and non-signal data and is divided into time blocks of uniform size, a circuit for generating navigation data indicating a position and a velocity of the platform corresponding to the collection data, a digital signal processor for determining whether each data block includes signal data by determining a signal to noise ratio and a bandwidth of each stored data block and comparing the signal to noise ratio and the bandwidth to pre-determined threshold values, a wireless data link interface, and a controller for communicating the collection data to the digital signal processor, and for communicating qualified data and corresponding navigation data to the data link interface, wherein qualified data includes only data blocks that contain signal data; and a control station for receiving the data packets communicated by each of the receiver platforms and generating location information of the transmitter based on the data packets. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A method of data collection that reduces throughput of a data link between a receiver and a control station, the method comprising:
-
receiving a wireless signal and generating signal collection data at the receiver, wherein the signal collection data includes signal data and non-signal data and is divided into data blocks; analyzing each data block at the receiver to determine whether the data block includes signal data; and communicating qualified data from the receiver to the control station via a wireless data link, wherein the qualified data includes only data blocks that include signal data. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
Specification