Xu Feng then turned on the electronic warfare sub-screen, which showed the waveform and polarization information of the unfamiliar electromagnetic signal, in modern radar, the waveform and the polarization of the electromagnetic wave are modulated, so that the radar can detect the target more accurately. Xu Feng glanced at the electronic warfare screen and found that the waveform and polarization of the electromagnetic waves emitted by the Japanese radar were not modulated, which showed that the Japanese radar was quite primitive.

Xu Feng detected the radar signal of the Japanese army and immediately notified Lin Yuan and said: "I have discovered the signal of the Japanese radar, the working frequency is 300 megahertz, the waveform and polarization are not modulated, and it is a continuous wave radar. ”

After hearing this, Lin Yuan thought in his heart: "Radar can be divided into two categories according to the type of electromagnetic waves emitted, one category is continuous-wave radar, the electromagnetic waves emitted by this kind of radar are continuous, and the early radars are like this, this kind of radar has one of the biggest shortcomings, that is, if it does not use special frequency and waveform modulation methods, it cannot measure the distance." ”

"Because the electromagnetic waves emitted are continuous, and the distance cannot be calculated from the time interval between the transmitted waves and the echoes, most of this kind of radar is used for police purposes in modern society, such as to measure whether a vehicle is speeding. According to the level of Japanese technology, it is certainly impossible to achieve complex frequency and waveform modulation, so their radar cannot measure distance. ”

"There is also a pulse radar, the electromagnetic waves emitted by this radar are intermittent, so it can be used to measure distance, azimuth and speed can also be measured, almost all modern military radars are pulse radars." Thinking of this, Lin Yuan said: "It seems that the radar skills of the Japanese army are still quite primitive, and they are not our opponents, so let's come back first, wait until the smoke clears, and then you will dispatch, and next time turn on the electronic warfare module to suppress the radar of the Japanese army." ”

Xu Feng said with a smile: "When I go back, let's bring two anti-radiation missiles, I remember that the instructor of the military academy once said: 'To deal with the enemy's radar, electronic jamming, deception and suppression are all floating clouds, and hard killing is the king!'" I flew over the Japanese radar with an anti-radiation missile, and then threw the anti-radiation missile over and blew up the little devil's radar! ”

Lin Yuan smiled: "Can't you pity the fragrance and cherish the jade?" Is it easy for a little devil to make a radar? We shouldn't have ruined it, it's too rough, we should have had it for fun. ”

Xu Feng laughed and said, "Ever since you and Sister Wanqing's sister got there, you've become more and more evil!" After saying that, Xu Feng returned to the base, and at about three o'clock in the afternoon, Lin Yuan informed Xu Feng that the smoke had cleared and he could go, Xu Feng set off immediately, and this time he turned on the electronic warfare module of the airborne phased array radar as soon as he set off, preparing to suppress the Japanese radar.

Xu Feng's fighter received the electromagnetic wave signal of the Japanese radar when it flew about 100 kilometers away from the Japanese position, and because the signal recognition accuracy of the airborne phased array radar on the fighter was much higher than that of the Japanese radar, although Xu Feng discovered the radar signal of the Japanese army, the Japanese army had not yet discovered Xu Feng.

Xu Feng immediately activated the electronic warfare module on the plane, the phased array radar immediately began to work, and the receiving unit immediately began to receive and analyze the electromagnetic wave signal of the Japanese army, obtained its frequency, and then began to use this frequency to transmit electromagnetic waves of the same frequency to the direction of the Japanese radar, these electromagnetic waves will block the receiver of the Japanese radar, so that the Japanese radar can not detect Xu Feng.

Xu Feng smiled secretly in his heart: "Little devil, how do you still find me?" You just wait to be sent to the western sky by my TV-guided missiles. Xu Feng thought as he called up the three-dimensional topographic map of the Japanese position, and then began to analyze the position from which the missile was launched.

Xu Feng thought in surprise: "The little devil's radar doesn't seem to be a pus-filled parallel import!" It was able to break through the electronic suppression of my fourth-generation fighter! I don't know what advanced techniques the little devil used? Thinking of this, Xu Feng immediately contacted Lin Yuan and said, "Brother Lin, I found that the Japanese army's radar is very strong!" ”

Lin Yuan smiled: "The old-fashioned antique, what's strong?" ”

Xu Feng said loudly: "The Japanese radar actually discovered me, but they still lit a fire, and the thick smoke once again obscured the position. ”

Lin Yuan gasped when he thought of this, and secretly thought, "Could it be that the little devil has come up with some advanced techniques?" Shouldn't it, the frequency of their radar is 300 megahertz, the radar system is continuous wave, the waveform has not yet been modulated, and such a radar can also crack our electronic interference? Could it be that there are also talents in the little devils? ”

The more Lin Yuan thought about it, the more puzzled he became, so he asked, "What method did you use to suppress the radar of the Japanese army?" ”

Xu Feng said: "I turned on the electronic warfare module, first detected the frequency of the opponent's radar, and then sent a large number of electromagnetic waves of the same frequency to their radar direction to suppress their receivers, so that they could not receive the signals reflected by my aircraft." ”

Lin Yuan sighed after hearing this, and said helplessly: "You second goods!" No wonder the little devils were able to spot you! ”

Xu Feng said aggrievedly: "Why are you scolding me? ”

Lin Yuan said: "I told you yesterday, the Japanese army only knew that there was a plane flying towards them, and they didn't know the precise direction and speed information of the plane, their strategy was that as soon as they found that a plane was approaching, they would burn things and release smoke, you used a large number of high-intensity electromagnetic waves to suppress their radar today, as soon as they found that the radar received a large number of interfering electromagnetic waves, they must know that the road was a plane, what are you waiting for if you don't smoke?" ”

Xu Feng suddenly realized: "Oh, so that's the case! It seems that it is not that the enemy is too cunning, but that I am too stupid......"

Lin Yuan said with a smile: "Don't 'praise' yourself, now you immediately carry out 'deceptive interference' on the enemy army, in that function, our radar can trick the enemy's radar, so that they mistakenly think that you have flown away, and they don't have much fuel, and they will definitely not burn again if they find that you are gone, the wind is relatively strong today, you fly around the Japanese position for a while, and then you will go back when the smoke is gone." ”

Xu Feng said: "I understand. "Then the electronic suppression mode was turned off, and then the function of 'deceptive jamming' was turned on, and the phased array radar immediately sent an echo with a deception message, and the radar measured speed based on the principle of the Doppler effect, that is, the frequency of the wave will change with the movement of the target, and the echo with the deception information can simulate this change, so that the opposing radar operator mistakenly thinks that the target has changed the direction of speed and is moving away from himself.

The Japanese operator was also new to radar and knew little about electronic warfare, and when he saw the deception echo sent by Xu Feng's fighter, he immediately reported to his superiors: "Captain, the aircraft of the people of China has escaped. ”