This paper improves the performance of GPS jamming signal using new technology of jamming. We use new technology called multi-band limit white noise. We identify jamming design issues. How those issues may affect jamming system performance. It addresses fabrication issues, data requirements, error handling, local and remote operations, how to attain high accuracy, and repeatability during the generation and measurement of jamming. We simulate this GPS jamming signal using matlab, and jamming controlling system using fuzzy logic. Finally make comparisons between all jamming technologies that use in simulation.