Method for updating ionized layer delay value

• Main Authors: WEI ZHENYI, ZHANG HONGLUN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a method for updating an ionized layer delay value, and the method comprises the steps: obtaining an ionized layer mask telegraph text, and extracting a grid belt number and a grid point mask for an existing grid from the ionized layer mask telegraph text; determining whether a mask identifier of a grid point in a mask list is valid or not based on a grid point mask in the ionized layer mask telegraph text and a binary number stored in a corresponding bit in the uniform grid list; obtaining an ionosphere delay telegraph text, and extracting a grid belt number and a grid point ionosphere delay value from the ionosphere delay telegraph text; and identifying effective grid points for masks in the mask list, and updating values of corresponding data elements in the delay list by using ionosphere delay values of the grid points in the ionosphere delay message. According to the invention, a small amount of redundancy is introduced, the uniform grid is established, and the storage structure o