Design and Link Budget Analysis of Efficient Missile Telemetry Data Transmission during Re-entry Blackout
C Jenila, Sakthi Viswanath S, M. Chandru, M Karkuvel, Hemand Surya M · 2023
Our research tackles the tough challenge of rescuing vital data from missiles that journey through Earth's atmosphere during re-entry, causing a communication blackout due to the plasma sheath. Our solution is adaptive, ensuring continuous transmission of critical telemetry data. During these blackout phases, our system uses smart techniques to send compressed data using lower-order modulation. This strategic move ensures the reliable transfer of crucial information even in challenging atmospheric conditions. As the blackout clears and channel estimation becomes possible, our system dynamically switches between different modulation types based on the channel quality. This adaptable approach optimizes data transfer, boosting reliability and reducing delays. To further safeguard the data, we use convolutional coding, significantly lowering the Bit Error Rate (BER). This strong error-correction method maintains data accuracy and security, even in the presence of noise and interference. Our proposed system offers a versatile, adaptive approach for retrieving telemetry data in plasma sheath environments, greatly enhancing the chance of gathering essential information throughout a missile's flight. This innovation shows tremendous potential in elevating the safety and effectiveness of missile technology and defense systems.