This is referring to the MARV warhead, right? The mini-satellite cannot be that mini since it has to accommodate a battery and a radar large and powerful enough to detect, track and discriminate targets from potentially more than 100km range. Something of fighter radar size would be needed.Good analysis, but I would suggest that the sensor package would be much easier and effectively deployed as a mini-satellite. Because if it is deployed in atmosphere, it would already be past the plasma sheath phase of re-entry, and would have to have its own heat shield and slowing and stabilising mechanisms, and would be very little time to sort itself out, find the target and that would leave very little time for the warhead to do any meaningful course corrections.
Deploying the sensor package (as well as other decoys) once the AShBM has left the atmosphere would then serve the stated purpose of decoying (only mid-course intercept would have any realistic chance of success, so I don’t think they would even bother with terminal phase decoys); and also provide much more timely course updates for the warhead before it starts it’s re-entry phase.
During the re-entry phase, the mini-satellite would be able to see both the warhead and its target and thus can provide high precision, lag-free course update data to the warhead to guide it such that once it clears the plasma sheath, it’s own sensors would be perfectly aligned to acquire the target.
This is an excellent practical engineering solution that exemplifies Chinese problem solving at its best. Rather than trying to brute force an impossible seeming challenge, they neatly sidestep it instead to delivery practical solutions without ridiculous budget and time investments.
HGV by definition fly within the atmosphere. Important to point out: HGV cannot maneuver at low altitudes: they have to dead reckon the target position for the last 20km segment and properly align themselves. Their speed is their best defense against SAMs and point defense systems.
Last edited: