Semi-systolic architecture with carry-save arithmetic for binary correlators in spread-spectrum-systems

An architecture of a binary correlator is described. Efficient hardware realization is achieved through carry-save arithmetic in a semi-systolic array. Flexibility of floor-planning and parametrizable modules on word level allow the implementation of arbitrary correlation length and input word length. The response time of the correlator with contradata-flow-structure is independent of the realized correlation length. The testcircuit reaches clock frequencies of typically 75 MHz. Therefore this circuit is a feasible substitution for analog components in this frequency range.