MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202541021227 A) filed by Lekha Wireless Solutions Private Limited on March 10, 2025, for System And Method For Location Estimate In A Global Navigation Satellite System (gnss) Denied Environment.
Inventors include Prathima Srinivasamurthy; Sashiganth Muruganantham; Amarnadha Reddy; Maddur Elumalai Sundaravel; Raveendranath K R; Challa Surya Prakash; Sourab S; and Sreenath Ramanath.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: System and Method for Location Estimate in a Global Navigation Satellite System (GNSS) Denied Environment System (200) and method for estimating location of one or more mobile nodes in a Global Navigation Satellite System (GNSS) denied environment, The system (200) includes a single master station. The controller (206) is configured to transmit one or more commands from the single master station to the one or more mobile nodes by selecting one Switched Beam Antenna (SBA) port at a time form a plurality of ports, receive one or more response messages from the one or more mobile nodes in the plurality of ports, measure a Received Signal Strength Indicator (RSSI) of the received response messages, then calculate the coarse angle using a SBA port number and estimate a fine angle using the interpolation techniques and then calculate the coarse range using a propagation delay of a command-response messages and estimate the fine range using the shared range information from the mobile nodes, retrieve a predefined location information of the master node and the projection techniques. The estimated location is shared to all the mobile nodes for further process.
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