Distributed carrier with joint equalization

A method for obfuscating a carrier in a communications system comprising:

• creating a base waveform burst as the carrier;
• creating a plurality of channelizers with a plurality of aligned filters;
• channelizing the base waveform burst using the plurality of channelizers;
• and
• distributing a plurality of strips resulting from the channelizing across multiple time slots and frequencies.

A communications apparatus comprising:

• a transmitter to:
• create a base waveform burst as the carrier;
• create a plurality of channelizers with a plurality of aligned filters;
• channelize the base waveform burst using the plurality of channelizers;
• and
• distributing a plurality of strips resulting from the channelizing across multiple time slots and frequencies;
• and
• a receiver to:
• align a plurality of received strips in frequency, phase, amplitude and time;
• and
• for each strip, filter the strip, up-sample the strip and place the strip into a correct relative frequency position based on the plurality of aligned filters used in the transmitter;
• and interleave and feed a plurality of resulting samples to a LN-LMS equalizer to create an initial waveform burst which was transmitted.

A communications apparatus comprising:

• a transmitter including:
• a signal generator to create a base waveform burst as a carrier signal;
• a plurality of matched polyphase filter bank channelizers to channelize the carrier signal into a plurality of strips such that each individual strip of the plurality of strips has a bandwidth well below a Nyquist rate for information carried by a base waveform, making full data extraction from said individual channels a theoretic impossibility;
• a plurality of pseudo random IF upconverters to upconvert the plurality of strips into a plurality of predetermined carrier frequencies within a desired bandwidth of the transmitter in a pseudorandom manner to obfuscate an order in which the plurality of strips occur in the base waveform to form an output carrier signal;
• an IF output to output the output carrier signal.