| 摘要 |
Signals output from a first and a second lowpass filters(108,109) are provided to a first and a second A/D converters(126,127), respectively, to be digitalized. These digitally converted signals are multiplied with a pseudo noise(PN) at a first and a second multipliers(110,111), then transmitted to a first and a second accumulators(124,125). The transmitted signals are accumulated at the first and the second accumulators(124,125) as much as the baseband code section(T), outputs from the first and the second accumulators(124,125) being transmitted to a digital complex computing means(A2), where the outputs of the first and the second accumulators(124,125) are processed under digital computation, results of that computation being provided to an acquisition and a PN code tracking circuit.
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