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Analysis of sampling and quantization effects on the performance of PN code tracking loops

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2 Author(s)
Quirk, K.J. ; Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA ; Srinivasan, M.

Pseudonoise (PN) code tracking loops in direct-sequence spread-spectrum systems are often implemented using digital hardware. Performance degradation due to quantization and sampling effects is not adequately characterized by the traditional analog system feedback loop analysis. A low-complexity digital PN code tracking loop with one-bit non-commensurate sampling is analyzed, and the steady-state delay error variance is derived. The results are compared with that of an equivalent analog loop.

Published in:

Communications, 2002. ICC 2002. IEEE International Conference on  (Volume:3 )

Date of Conference:

2002