CARRIER GENERATION FACILITY FOR A DIGITAL MPX-SIGNAL DEMODULATOR

摘要

A carrier generator for a switchable digital demodulator (D) capable of switching a corresponding pilot signal (p1) locked to an arbitrary clock signal (t1) together with the digital MPX signal (mpx1). The indicator signal PLL 10 generates the first carrier signal x1.1, x2.1 and the second carrier signal x1.2 by the first value divider 15 and the second value divider 20, respectively. do. According to the demodulated MPX signal mpx1, the control device 60 delivers an initial value i0 and at least one phase correction value k1, k2. The initial value i0 sets a capture range of the indicator signal PLL 10 with respect to the indicator signal p1 according to each standard. In the first correction device 16 and / or the second correction device 23, the phase correction values k1 and k2 are the first carrier signals x1.1 and x2.1 and / or the second carrier signals ( correct the system-specific phase deviation of x1.2).