Baseband signal processing device and positioning receiver

The invention is suitable for the technical field of satellite positioning, and provides a baseband signal processing device and a positioning receiver, and the baseband signal processing device comprises a selection unit, a plurality of pseudo-random noise code generation units, and a plurality of processing units corresponding to the pseudo-random noise code generation units. The selection unit is used for generating a selection signal corresponding to the initial message data based on the received initial message data, and sending the selection signal to the pseudo-random noise code generation unit indicated by the selection signal; the pseudo-random noise code generation unit is used for generating a pseudo-random noise code corresponding to the initial message data based on the selection signal; and the processing unit is used for receiving the initial telegraph text data, acquiring the pseudo-random noise code from the corresponding pseudo-random noise code generation unit, and demodulating the initial