Low-cost and high-precision satellite navigation and positioning receiver

• Main Authors: WANG MAI, LIU YUBO, CAO HAITAO
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2012
• 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 utility model discloses a low-cost and high-precision satellite navigation and positioning receiver. The low-cost and high-precision satellite navigation and positioning receiver comprises a receiving antenna unit, a radio frequency unit, an analog/digital converter, a digital baseband signal processing unit, a clock generation unit and a power supply management unit, wherein the receiving antenna unit comprises an antenna patch, a low-noise amplifier a and a filter a; the radio frequency unit comprises a low-noise amplifier b, a frequency mixer, an automatic gain control circuit and a filter b; and a front-end processing module comprises a radio frequency signal pre-processing circuit, a capture circuit, a tracking circuit, a capture and tracking common logic control circuit and a self-checking alarm circuit, and a back-end processing module comprises a positioning resolution module, an error correction module and a combined navigation processing module. According to the low-cost and high-precision satel