| 摘要 |
PURPOSE: A compression sensing method and a device thereof are provided to reduce the hardware size of a receiver for obtaining a signal. CONSTITUTION: A global navigation satellite system (GNSS) and band spread signal acquisition device includes a signal detecting unit (300). A signal searching unit searches a GNSS positioning signal or a band spread signal. A signal searching unit comprises a parallel correlator (310), a signal generator (320), and a decoding module (330). A signal generator generates a compression sensing matrix including a matrix size (M×L) by using a measurement matrix including a matrix size (M<L) and a correlation matrix including a matrix size (L×L). A parallel correlator executes correlation between a received signal and a compression sensing matrix by constructing the M correlator in parallel. The decoding module obtains a Doppler frequency and a code phase of the received signal by using the compression correlation result of the correlator. |
