The European Space Agency has been granted a patent for a receiver designed for global navigation satellite systems (GNSS). The receiver uses cross-correlation functions to estimate clock bias and composite channel contributions from multiple satellite signals, improving accuracy in time-delay calculations. GlobalData’s report on European Space Agency gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on European Space Agency, Beamforming networks was a key innovation area identified from patents. European Space Agency's grant share as of May 2024 was 66%. Grant share is based on the ratio of number of grants to total number of patents.
Receiver for gnss with multiple satellites for clock bias estimation
A newly granted patent (Publication Number: US11994598B2) discloses a receiver designed for use with a global navigation satellite system (GNSS) that includes multiple satellites transmitting navigation signals with spreading codes. The receiver features a receiver clock, at least one antenna for receiving signals over multiple channels, and correlators for calculating cross-correlation functions between received signals and reference navigation signals. By utilizing these functions, the receiver can jointly estimate the clock bias of the receiver relative to the GNSS time reference and determine a composite channel based on the contributions from multiple channels over time-delay functions. The accuracy of the estimated clock bias is improved by using an approximate clock bias as a reference point.
Furthermore, the patent includes a method for operating the receiver within a GNSS environment, where cross-correlation functions are calculated between received signals and reference navigation signals to perform a joint estimate of the receiver clock bias and composite channel. This method allows for accurate determination of the clock bias offset from an approximate bias, enhancing the overall performance of the receiver. Additionally, the receiver is capable of operation in indoor environments, showcasing its versatility and potential applications across various settings. The innovative technology described in the patent aims to improve the efficiency and accuracy of GNSS receivers, particularly in scenarios with multiple satellite signals and complex signal contributions.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
