Dual-mode navigator with GPS receiving mode and plough receiving mode
A receiving mode, navigator technology, applied in the field of navigation, to reduce errors, improve positioning accuracy, improve flexibility and controllability
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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] The hardware platform of a kind of portable navigator of the present invention, as figure 1 As shown, it is composed of analog signal processing module 1, Beidou receiving module 2, GPS receiving module 3, processor module 4 and image 3 The configuration of the power module shown.
[0022] The analog signal processing module 1 includes an antenna 1-1, a low noise amplifier 1-2, a filter 1-3 and a power divider 1-4. The signal preprocessed by the analog signal processing module realizes signal separation, frequency conversion and gain amplification through the respective RF front-end modules 2-1 and 3-1 of GPS and Beidou to obtain two intermediate frequency signals. After the GPS signal is processed by the integrated GPS baseband processing chip 3-2, the result is transmitted to the OMAP processor; the Beidou signal is proces...
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