Title :
Analysis of sampling and quantization effects on the performance of PN code tracking loops
Author :
Quirk, Kevin J. ; Srinivasan, Meera
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
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.
Keywords :
pseudonoise codes; signal sampling; spread spectrum communication; tracking; DS-SS; PN code tracking loops; direct-sequence spread-spectrum systems; low-complexity digital PN code tracking loop; one-bit noncommensurate sampling; performance degradation; pseudonoise code tracking loops; quantization effects; sampling effects; steady-state delay error variance; Analysis of variance; Degradation; Feedback loop; Hardware; Performance analysis; Quantization; Sampling methods; Spread spectrum communication; Steady-state; Tracking loops;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.997096
