NAME: TUSHAR NARWAL ROLL NUMBER: 16152028 CLASS: 6TH SEMESTER WHAT IS ELECTRONIC WARFARE? WHEN WE NEED ELECTRONIC WARFARE? WHY WE NEED ELECTRONIC WARFARE? IDEOLOGY BEHIND? Electronic Warfare is a military action involving the use of electromagnetic energy to determine, exploit, reduce, or prevent the hostile use of electromagnetic spectrum as well as action which retains friendly use of electromagnetic spectrum. The Spectrum uses wide range of waves, The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from below one hertz to above 1025 hertz. When we need Electronic Warfare The Spectrum range provide us: Electronic Support Measures. Electronic Counter Measures. Basic Idea…. . Electronic Support Measure is that division of electronic warfare which involves actions taken to search for, intercept, locate, record and analyze radiated electromagnetic energy, for the purpose of exploiting such radiations to support military operations. Thus, ESM is an important source of EW information to carry out electronic countermeasures and electronic, counter- countermeasures. Electronic Counter measures are the actions taken to prevent or reduce the enemy's effective use of the electromagnetic spectrum. Two major actions of ECM are jamming and deception. Jamming. The deliberate radiation, re-radiation, or reflection of electromagnetic energy to impair the use of electronic devices, equipment or systems is called Jamming. Deception. The deliberate radiation, re-radiation, alteration, absorption, or reflection of electromagnetic energy in a manner intended to mislead the enemy in the interpretation or use of information received by his electronic systems is called deception. There are two categories of deception. Manipulative. The alteration or simulation of friendly electromagnetic radiations to accomplish deception. Imitative. Introducing radiation into enemy channels which imitates his own emission. ELECTRONIC WARFARE IS BEING USED FOR THE PURPOSE SUCH AS LIKE: 1. Safe guarding the outskirts of the Nation. 2. Keep the Intelligence and the premises safe. 3. Early warning radar system. 4. Drones. WORKING BLOCK DIAGRAM