System and method for calculating a binary cross-correlation

A laser detection and ranging system, comprising:

• a laser transmitter;
• a receiver;
• and
• a processing circuit,
• the processing circuit being configured to:
• transmit, through the transmitter, a plurality of laser pulses, each at a respective one of a plurality of pulse transmission times;
• detect, using the receiver, a plurality of return pulses, each at a respective one of a plurality of return pulse times;
• form a first time difference, the first time difference being the difference between a first return pulse time of the plurality of return pulse times and a first pulse transmission time of the plurality of pulse transmission times;
• and
• increment a first element of a first array, the first element of the first array having an index based on the first time difference.