r&s®smate-九游官网下载

in generic mode, static satellites with constant doppler shifts are provided for simple receiver tests, like for example sensitivity tests.

in localization mode dynamic satellites according to a real almanac file are simulated. hence, the connected gps receiver can obtain a valid 3d position fix at a user-defined location. the whole configuration of visible satellites and the generation of the ephemeris out of the uploaded almanac is done automatically by the r&s^®amu200a. the user only needs to specify time and location. so, a realistic scenario with an optimal satellite constellation, i.e. a minimum position dilution of precision (pdop) is achieved.

the gps functionality of the r&s^®smate200a can be enhanced with the option assisted gps r&s^®smate-k65. it is only available for 2-path instruments equipped with two gps options r&s^®smate-k44. the option r&s^®smate-k65 enhances the r&s^®smate-k44 with functionalities required for a-gps test scenarios for 3gpp fdd and gsm. however, the r&s^®smate-k65 is not limited to be used in a-gps testing exclusively. for testing of stand-alone gps receivers it is useful as it allows to simulate moving receivers and offers the possibility to create user-defined gps scenarios. full flexibility is offered on the simulated satellites including definition of the satellites’ orbits, the complete navigation message and the ionospheric model of each satellite.