Generation and effects of conduction and radiation noise voltages between the components of a single system

The main interference effects between the various components of electronic airborne systems were discussed, with emphasis on protection techniques and policies that should be adopted. In recent years, the introduction of digital numerical techniques, despite their numerous advantages, have complicated the integration of components using these techniques. Protection policies against such interferences rest on the following objectives: (1) limitation, insofar as possible, in the number of static noise generators, (2) reduction of the undesirable coupling effects, (3) avoiding perturbing effects by selecting appropriate techniques for data transmission. In addition, airborne system components are regulated by certain standards and specifications such as: AIR 510 C fourth edition of 15 Feb. 1963, Mil Std 461 A of 1 Aug. 1968, Mil Std 462 of 31 July 1967.