Localized jamming of navigation signals

A jamming device configured to perform localized jamming of a navigation signal, wherein the navigation signal comprises at least a portion of a low earth orbit (LEO) signal provided by a LEO satellite, the device comprising:

• a noise source adapted to provide a noise signal;
• a plurality of filters adapted to filter the noise signal into a plurality of frequency bands to provide a plurality of filtered noise signals in the frequency bands, wherein the navigation signal is spread over a plurality of channels of the LEO signal, wherein the channels are distributed over the frequency bands and a plurality of time slots;
• a pseudo random noise (PRN) sequence generator adapted to provide a modulation sequence used by the LEO satellite to spread the navigation signal over the channels;
• a plurality of oscillators adapted to modulate the filtered noise signals using the PRN sequence to provide a plurality of modulated noise signals;
• and
• an antenna adapted to broadcast the modulated noise signals over an area of operations to provide a plurality of jamming bursts corresponding to the navigation signal, wherein the jamming bursts are configured to substantially mask the navigation signal in the area of operations.

A jamming device configured to perform localized jamming of a navigation signal, wherein the navigation signal comprises at least a portion of a low earth orbit (LEO) signal provided by a LEO satellite, the device comprising:

• means for filtering a noise source into a plurality of frequency bands to provide a plurality of filtered noise signals in the frequency bands, wherein the navigation signal is spread over a plurality of channels of the LEO signal, wherein the channels are distributed over the frequency bands and a plurality of time slots;
• means for generating a pseudo random noise (PRN) sequence corresponding to a modulation sequence used by the LEO satellite to spread the navigation signal over the channels;
• means for modulating the filtered noise signals using the generated PRN sequence to provide a plurality of modulated noise signals;
• and
• means for broadcasting the modulated noise signals over an area of operations to provide a plurality of jamming bursts corresponding to the navigation signal, wherein the jamming bursts are configured to substantially mask the navigation signal in the area of operations.