Advanced Propagation Model (APM) Version 2.1.04 Computer Software Configuration Item (CSCI) Documents

: This document provides Version 2.1.04 Computer Software Configuration Item documents for the Advanced Propagation Model (APM). The APM calculates range-dependent electromagnetic system propagation loss and propagation factor within a heterogeneous atmospheric medium over variable terrain, where the radio-frequency index of refraction is allowed to vary vertically and horizontally. The first document specifies the functional requirements that are to be met by the APM CSCI. A discussion of the input software requirements is presented together with a general description of the internal structure of the APM CSCI as it relates to the CSCI's capability. The second document describes the design of the APM CSCI. An overview of the input software requirements is presented together with an overview of the CSCI design architecture and a detailed design description of each CSCI component. The third document specifies the test cases and test procedures necessary to perform APM CSCI qualification testing. A discussion of precise input values of each input variable required to perform the test together with final expected test results is presented.