The measurement on the range resolution of signals is mainly based on nominal range resolution parameter and delay resolution constant.However

in calculating the range nominal resolution of rectangular pulse signals using conventional definition formula

quadrature operation for range ambiguity function or infinite integration for "SIN" function is required.But these integral operations are often so complex or indefinite as not to give an effective result.Being apart from the definition formula boldly

the paper proposes to search for the columns in the ambiguity function matrix where the "half power point" exists and solves the problem above mentioned.It puts forward a completely new idea for calculating the resolution of this kind signal.In addition

with calculation for delay resolution constant

an expression in time-domain is derived using Parseval theorem on the basis of the original definition

thus

infinite integration for "SIN" function is ingeniously avoided.It provides a novel method for calculation for delay resolution constant.Particularly

in verification operation for "sync-plus-white" signal

using Parseval theorem again

the quadrature for "sync-plus-white" signal in several periods is changed into that in one period

thus making the computation simplified greatly.