Mobile communicating device for integrated measurement by gps and ins
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PURPOSE: A mobile communication terminal capable of continual determination by mounting a GPS and an INS, and a method for determination are provided to transmit urgent location information in real time and supply continual real time determination information, and accurate indoor determination. CONSTITUTION: The state of a GPS and the determination possibility of a CDMA regarding to current location information are determined. A communication module and a signal processing module of a mobile communication terminal receive a GPS signal and a mobile communication signal for measuring pseudo range to a GPS satellite and pseudo range between base stations. An INS unit(9) embedding an acceleration censor and a gyro sensor performs initial alignment of the mobile communication terminal using sensor information. The INS unit(9) calculates location information of the mobile communication terminal by using sensor information in a dead reckoning. The INS unit(9) calculates Doppler estimation value for a GPS receiver(7) by using the dead reckoning, acceleration, and direction information. A microprocessor(6) of the mobile communication terminal mixes reciprocal information for performing GPS/INS mixed navigation algorithm enabling continual determination.