A systolic array for linearly constrained least squares filtering

This paper considers a fully pipelined systolic array for solving a constrained least squares filtering problem, also known as linearly constrained array processing. This filtering problem is important in adaptive antenna arrays in which the desired narrowband signal arrives from a known direction and narrowband jammers from different directions are present. The systolic array structure allows the filtering to be done with a high throughput, important for real time communication systems.