Telenav Gmbh

Beijing Institute of Technology

Beijing Aerospace Institute for Metrology and Measurement Technology

Kun Xiong

Tao Wang

Qiang Wang

Feng Zhang

Zhen Wang

Yue Wu

Jing Hu

Ran Tao

Yinxiao Miao

Mingfeng Lu

Jinmin Wu

Ye Tang

Zhengjie Wang

Xianggen Xia

Chunxi Wang

Shengquan Tang

Qiufang Shang

Disclosed is a single star-based orientation method using a dual-axis level sensor, which includes a calibration process and an actual calculation process.

Single star-based orientation method using dual-axis level sensor

A method, device and electronic apparatus for estimating physical parameters are disclosed. The method includes: reading a Newton's rings fringe pattern obtained by performing an interferometric measurement on a unit to be measured; obtaining the number and length of first-direction signals of the Newton's rings fringe pattern; performing, for each of the first-direction signals, a discrete chirp Fourier transform (DCFT) on the first-direction signal based on each first chirp rate parameter within a range of the length of first-direction signals, to obtain a first magnitude spectrum of an intensity distribution signal in a DCFT domain; determining a first chirp rate parameter and a first frequency parameter corresponding to a first magnitude peak value based on the first magnitude spectrum; and estimating the physical parameters involved in the interferometric measurement at least according to the first chirp rate parameter and first frequency parameter corresponding to the first magnitude peak value. In this way, the physical parameters involved in the interferometric measurement can be estimated with high accuracy and stably.

Method, device and electronic apparatus for estimating physical parameter by discrete chirp fourier transform

A method of operation of a navigation system includes: generating a destination index based on a search indicator for distinguishing a candidate destination from another; receiving an entry for a point of interest; generating an entry update based on segmenting the entry for comparing the entry update to the destination index; and identifying a target destination based on resolving the destination index with the search indicator for matching the entry update to the candidate destination for displaying on a device.

Navigation system with intelligent trie and segmentation mechanism and method of operation thereof

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Beijing, China

Kun Xiong