The principle of human technology radar that Zhu Jue is familiar with is very simple: radar waves are a kind of electromagnetic waves. Radar emits radar wave energy to a certain direction in space through an antenna, and objects in this direction reflect the encountered radar waves; radar The antenna receives this reflected wave, processes the reflected wave, and can extract certain information data about the object, such as orientation, height, etc.
If your guess is correct, the pair of abnormally long tentacles on the Radar Destroyer's head are the transmitting and receiving equipment for radar waves.
It is also possible that the radar destroyer emits not radar waves, but other detection methods such as ultrasonic waves, but the principle is similar, and it is relatively more likely that it is electromagnetic waves in the atmospheric environment.
Electromagnetic waves are not a perfect detection method. Just like flying knights flying in the air for reconnaissance, they may encounter obstructions in their line of sight. Electromagnetic waves can also encounter interference and even be deceived, and Zhu Jue will take advantage of this opportunity. .
Electromagnetic waves will attenuate in the air, and a certain height is required to cover a wider range. Zhu Jue has passed previous tests and estimated that the radar destroyer's detection range is about 2 hours away from an ordinary ant's walking pants.
In other words, at a distance of 2 hours from the Destroyer army, the civilized ant coalition can maneuver at will without being detected by the radar Destroyer.
But if you want to continue to enter the radar detection circle 2 hours away without making a sound, you still need to rely on radar interference methods, such as radar suppression and radar spoofing.
Radar suppression is the use of electromagnetic waves emitted to the radar in the same frequency band to cause the radar destroyer to receive a large amount of useless clutter, making it impossible to accurately distinguish echo signals and reducing the radar's ability to process echo signals. It's almost like shining a high beam into the eyes of a person who is looking into the distance, making him unable to see anything clearly.
As for radar spoofing, there are various specific methods of spoofing. The purpose is to make the radar obtain false information, causing it to make wrong judgments or increase the error of the radar automatic tracking system.
Zhu Jue did not have the corresponding high-tech equipment at hand, and he did not know the specific frequency band of the radar destroyer if it used electromagnetic waves. He could not interfere with the radar destroyer by suppressing the frequency band. But there are ways to cheat, and it's not complicated.
If the Radar Destroyer cannot tell the difference between ordinary insects and ants, it can use insect colonies such as locust swarms to deceive the Radar Destroyer. However, Zhu Jue thought about it carefully and felt that this was unreliable. The Destroyer has never misjudged the presence of other insects before. The Radar Destroyer and even the Destroyer itself can obviously tell that distant insect signals are not ants.
In addition, reducing the size of the ant colony should greatly reduce the probability of being detected by the radar destroyer. This is also past experience. A group of hundreds or thousands of ants is rarely detected by the radar destroyer from a long distance. If explained in terms of radar principles, it may be that if the size of the ant colony is too small, it will be difficult for the radar destroyer to distinguish the echo from the background clutter, thereby achieving "stealth" of the target ant colony.
In addition, due to the limitations of the radar destroyer's size and climbing ability, its height is generally not high, and some rugged terrain should also be able to effectively block electromagnetic waves. It can be understood if you think about the fact that radar stations in the human world are often located on high mountains. . Therefore, if the civilized ant alliance is good at using the terrain, it should be able to block the detection of the radar destroyer.
After Zhu Jue came up with an idea, he landed and assigned tasks to the mobile troops. The troops were in position, and a tactical deception operation began!
————
As noon approached, about a quarter of the Radar Destroyer tentacles in the Destroyer formation turned south, but most of the Radar Destroyers did not turn.
These minority radar destroyers vaguely noticed that there was a large group of ants moving at the edge of the detection range in the south, but they kept wandering around the edge. The signal was intermittent and the other party did not get closer.
After a while, the signal of a large swarm of ants approached from the south, but it was still about an hour away. At this time, all radar destroyers have detected this group of ants, and their tentacles are all pointing south, and they are paying close attention.
For about two full hours after that, the signals of this group of ants either stayed in place or moved randomly without getting closer to the battlefield. The radar destroyers still pay attention to this signal, but more than half of them continue to detect other directions.
At the same time, in the direction of the stone crevices in the southeast, weak signals were transmitted back from time to time, which seemed to be small-scale ant colonies. However, the signals faded and appeared, and the Radar Destroyer instinctively judged them as clutter and did not pay attention!
It was not until much later, with the booming of cannons, that the Destroyers were shocked to realize that the coalition of civilized ant tribes had lurked near them, forming an array behind a ridge!
The radar interference of the Civilized Ant Alliance was very successful this time.
The large signals to the south that the Radar Destroyers paid close attention to were indeed signals from the coalition of civilized ants, but they were just a large number of honeypot ants. They did not participate in the war, but only acted as suspects. As Zhu Jue expected, although the radar destroyers could distinguish between ants and insects during detection, they were obviously unable to distinguish between elites and miscellaneous soldiers among the ants.
The radar destroyer, which mainly relies on echo data detection, is easily attracted by this large area of obvious echo, thereby ignoring some "real signals" that appear and disappear.
While the young honeypot ants attracted the attention of the Radar Destroyer, the combat troops of the civilized ant coalition dispersed into legion-level units and set off one after another at a certain distance. The small size of these legion-level units makes them unnoticeable to Radar Destroyer detection. At the same time, they also tried to take advantage of the undulating terrain, mainly moving behind the ridge lines.
Occasionally, the echo signals of these legion-level units are exposed. Because the signals are weak and appear and disappear, they are successfully ignored by the Radar Destroyer.
When the army arrived at the assembly point very close to the Destroyer, although the scale continued to increase, it was still not noticed due to terrain reasons.
The gathering place chosen by Zhu Jue in the air was located very close to the Destroyer's camp. It was a natural depression near the cracks in the rocks. There is also a one-centimeter-high dirt ridge between the depression and the Destroyer's camp, which can block the electromagnetic waves of the Destroyer's radar. This is another blind spot where thunder destroyers think they are safe. Very few radar destroyers will actively scan for enemies without noticing they are approaching. Therefore, the civilized ant coalition quietly gathered and successfully lurked!
When the Destroyer was suddenly attacked from the side and rear, the Radar Destroyer also immediately encountered a key attack!
