Mitsubishi Electric Corporation

Norizumi Motooka

Yuki Sato

Tomoya Ikeuchi

Masao Higuchi

Masatoshi Fujii

Tadatomi Ishigami

Masakazu Suzuki

Kohei Fujimoto

Yuichi Hagito

Masashi Kido

Shinya Ueda

Masayasu Fujita

Takamasa Kawaguchi

Akihiro Obara

Hiroshi Sakaida

The object is to provide a technology for appropriately making the centimeter positioning available in automotive applications. A positioning apparatus determines a standalone positioning solution including a vehicle position, determines a float solution including the vehicle position and a carrier phase bias, determines an integer ambiguity, determines a fix solution including the vehicle position, sets any one of the standalone positioning solution, the float solution, the fix solution, and a non-positioning solution indicating no existence of a solution as a positioning solution, and predicts a positioning error of the positioning solution as a positioning error of the vehicle position per epoch.

Positioning apparatus and positioning method

A first bias conversion unit converts, based on a first frequency and a second frequency, a signal bias related to carrier phase for correcting a carrier phase contained in a first ranging signal having the first frequency, to a signal bias related to carrier phase for correcting a carrier phase contained in a second ranging signal having the second frequency. A first correction unit corrects the carrier phase using the converted signal bias. A second bias conversion unit converts the signal bias related to pseudorange to the signal bias related to pseudorange by making reference to a conversion table indicating values for use in conversion of the signal bias related to pseudorange to the signal bias related to pseudorange. A second correction unit corrects a pseudorange using the converted signal bias.

Positioning apparatus and augmentation information generation apparatus

Growing community of inventors

Tokyo, Japan

Norizumi Motooka