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Which indigenously developed technology was used in the AKASH-NG missile during its flight test in 2024?
Electro-optical Seeker
Radio Frequency Seeker
Laser-guided Seeker
Infrared Seeker
Radio Frequency Seeker
In 2024, the Defense Research and Development Organisation (DRDO) successfully flight-tested the New Generation AKASH (AKASH-NG) missile equipped with an indigenously developed Radio Frequency (RF) Seeker. The RF Seeker enables high precision in intercepting maneuvering aerial threats at high speeds and low radar cross-sections. Option B is the correct answer.
In 2024, the Defense Research and Development Organisation (DRDO) successfully flight-tested the New Generation AKASH (AKASH-NG) missile equipped with an indigenously developed Radio Frequency (RF) Seeker. The RF Seeker enables high precision in intercepting maneuvering aerial threats at high speeds and low radar cross-sections. Option B is the correct answer.
Think of a blindfolded runner guided by a mini bat-sonar mounted on their forehead. While early-stage guidance gets the runner close to the target, the active sonar (RF Seeker) emits invisible high-frequency sound waves in the final seconds to pinpoint and track a moving target with exact precision, regardless of dark or foggy conditions.
AKASH-NGRadar Guidance = R.A.D.A.R. (Radio Active Detection And Ranging) тЖТ Radio Frequency (RF) Seeker.
fdтАЛ=c2vf0тАЛтАЛ тАФ Doppler frequency shift formula used by RF Seekers to measure target relative velocity v
RmaxтАЛ=4(4╧А)3PminтАЛPtтАЛG2╬╗2╧ГтАЛтАЛ тАФ Radar range equation determining lock-on distance based on target Radar Cross Section (╧Г)
A Radio Frequency (RF) seeker functions as an active or semi-active radar terminal guidance system mounted in the nose cone of a missile. During the terminal phase of flight, the RF seeker emits electromagnetic radar waves towards the target (or receives reflected signals) to calculate target location, velocity, and distance using Doppler shift and angle-of-arrival processing (fdтАЛ=c2vf0тАЛтАЛ). This enables precise proportional navigation guidance to achieve a direct hit or proximity detonation.
AKASH-NG (New Generation) is a Surface-to-Air Missile (SAM) system developed by DRDO for the Indian Air Force (IAF).
It features a solid rocket motor with a dual-pulse propulsion system, replacing the older ramjet engine for greater maneuverability.
The RF Seeker was indigenously designed by Research Centre Imarat (RCI), Hyderabad, a premier DRDO laboratory.
RF Seekers operate effectively through heavy clouds, rain, fog, and electronic countermeasure (ECM) environments.
All-weather operational capability unaffected by smoke, clouds, fog, or dust.
Longer detection range compared to Optical/Infrared seekers under adverse atmospheric conditions.
High terminal accuracy against maneuvering targets with low Radar Cross Section (RCS).
Susceptible to active Electronic Counter-Measures (ECM) such as radar jamming and chaff dispersal.
Requires complex signal processing hardware inside a compact missile airframe.
Terminal guidance in Surface-to-Air Missile (SAM) defense systems.
Air-to-Air missile engagement against high-speed fighter aircraft and cruise missiles.
| Feature | Radio Frequency (RF) Seeker | Infrared (IR) Seeker |
|---|---|---|
Operating Spectrum | Microwave / Millimeter-wave bands (e.g., Ku/X-band) | Infrared radiation (3-5 ┬╡m or 8-12 ┬╡m wavelengths) |
Weather Penetration | High (Penetrates heavy rain, fog, and clouds) | Degraded by clouds, fog, rain, and water vapor |
Countermeasures Sensitivity | Affected by Radar Jamming & Chaff | Affected by Thermal Flares & DIRCM |
Option A (Electro-optical Seeker): Uses visual light sensors; vulnerable to low visibility and night conditions.
Option C (Laser-guided Seeker): Requires an external laser illuminator targeting the object, suitable for air-to-ground precision weapons.
Option D (Infrared Seeker): Tracks heat signatures (e.g., in Astra or Python missiles), but AKASH-NG specifically integrated an RF seeker for medium-range air defense.
B is correct тАФ The AKASH-NG missile flight-tested in 2024 utilized an indigenously developed Radio Frequency (RF) Seeker for precise terminal guidance.
For defense technology questions in science sections, remember that modern Indian surface-to-air systems (like Akash-NG and MRSAM) rely on RF seekers for all-weather radar tracking, whereas short-range air-to-air or MANPADS systems primarily use Infrared (IR) thermal seekers.
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