Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver

A method of operation for a navigation receiver, comprising:

• identifying a first direction of an interfering source;
• performing a beam shaping process to form a first beam with a suppressed gain in said first direction of said interfering source within the field of view of an array of said navigation receiver;
• and
• correlating multiple navigation codes associated with said first beam so as to extract time and position data, wherein said identifying said first direction of said interfering source comprises creating a second beam tracking a first satellite and a third beam tracking a second satellite, turning on said second beam and off said third beam so as to obtain a first measurement from said first satellite, examining said first measurement for consistency, turning on said third beam and off said second beam so as to obtain a second measurement from said second satellite, and examining said second measurement for consistency.

A method of operation for a navigation receiver, comprising:

• creating a first beam with enhanced gain in a direction of a first source and suppressed gain in a direction of a second source;
• creating a second beam with enhanced gain in said direction of said second source and suppressed gain in said direction of said first source;
• and
• correlating multiple navigation codes associated with said first beam and said second beam so as to extract time and position data.