Radar is born from radio technology, but not just a radio emission a reflection, involving many things, a few radio transmitters can emit radio waves, but to have enough power, and reflect back, which requires quite a lot of power, these are just the basis of radar, it is a preliminary radar effect, can find long-distance targets through radar, but the target in that direction, how far away, you must add some calculations, the latter to a certain extent, It is more important than the former, there is no algorithm, it cannot be displayed if it is found, and it cannot be accurately reflected and displayed on the display screen of the radar. Pen & Fun & Pavilion www.biquge.info

Radar as a strategic weapon, the emergence of land-based and sea-based, directly changed the situation of the battlefield, in the past some adventurous chiseling and interspersed tactics, under the premise of the emergence of radar, become impossible, all over the Chinese border radar stations, can ensure a day in advance of the warship, for the aircraft one hour in advance, this to ensure the security of the sea and land, but if China wants to rise, a strong strategic strike fleet must have, which involves more things, A radar mounted on an aircraft is very critical for the aircraft carrier formation to quickly discover the opponent and ensure the efficiency of reconnaissance, and it is also one of the guarantees of the ******** in the navy.

China's radar research institute does not have a master, this is also a very helpless place, China's master has not yet fully grown, before pulling out the seedlings to help grow, so that China has tens of millions, or even hundreds of millions of talents that can be used, but also because of this seedling promotion, they have not accumulated enough knowledge, even if they have the talent of a master, it is impossible to grow into a master.

In the field of radio, China has a master, that is, a few years ago, the radio discoverer who was invited back by China, the super master in the field of electricity and radio, Truss, but Truss is a Yugoslav, and later joined the United States, even if he is quite satisfied with China's research environment and salary, he has never joined China, which is the biggest problem. Therefore, except in theory, after Yang Yuanzhao asked Taras to take action and laid the theory of radio detection, Taras was not responsible for the rest of the work.

Truss did make great contributions to the foundation of China's science and technology before, but with the development of science and technology, his work has turned more to civilian use, according to the civilian aspects of radio, for example, ranging, prospecting, and AC power generation, cutting-edge military projects such as radar, basically have nothing to do with him.

China's transformation, Truss is also well aware, compared to the military, he prefers to be civilian, such as power generation and alternating current projects, so he is also at ease, but in alternating current and alternator, because of patents, Truss has become a billionaire, and has access to China's first-class laboratories and equipment, he can freely study what he is interested in, such as bladeless propellers, long-distance power transmission, etc., which are more in line with his appetite.

Under the premise of the lack of masters, the speed of the radar project is not fast, even with the participation of Yang Yuanzhao, it is the same, Yang Yuanzhao is not an all-rounder, let alone a generalist, he is just an engineer, not even a researcher, can have the current status, more is the role of an all-in-one machine, in radar research, many times, he can't get involved, at most he can only tell the researcher the fragmented things that later generations heard.

Yang Yuanzhao doesn't know much about radar, that thing is a tall thing, and the on-board radar is also mostly used on civilian vehicles, on racing cars, who will install this, on the racing car, almost every inch of space and mass must be detained, radar, which has no effect, will not be installed on the racing car, even if it is installed, he is the engineer of the engine, and it is impossible to maintain that.

I vaguely remember that there is a Doppler in the radar of later generations, as if what fighter radar is what Doppler, he put forward this point in this radar project, so that the radar research institute to work in which direction, I thought it was just a name, in Yang Yuanzhao's view, it should have no effect, but I didn't expect that this mention inspired these radio experts, and the combination of radar and Doppler actually gave birth to new inspiration.

The researchers have spent a lot of time and energy, the effect is not nothing, but it is not very large, it is expected that a few months of time, may make the weight of the radar greatly reduced, from the original installation above the heavy cruise, to the light cruise, and even the destroyer can also be equipped with radar, which is a very big progress for sea-based weapons, but for the air-based, it is still useless, at present, China's destroyers are all large, the largest destroyer has reached 2800 tons, even the smallest, It also exceeds 1800 tons, such a tonnage situation, accommodating a radar of dozens of tons, as long as the volume of the radar is not too much, it is acceptable, but the aircraft, the maximum take-off weight is only about 90 tons, and there are many aerodynamic structures, which can not be said to be done, most of the planes in later generations are almost the same form, that is, radar and economy, there is a huge radar disk, and other aircraft are just an enlargement and reduction.

Radar has entered a dead end, almost all researchers understand that we must find a new direction, only the right direction, to make a suitable radar, but radar is a new product, if there is no Yang Yuanzhao to pull out the seedlings to help, I am afraid it will not appear until more than 20 years later, and gradually take shape, although around 1940, there is already a radar mounted on the aircraft, but like the radar of World War II, it is easy to be interfered with, very unreliable.

This is also the fundamental reason why the researchers did not put forward new ideas, and can only modify the old radar, because no one can afford to take responsibility for the failure of the idea, radar is different from other research, the investment is quite high, China is in semiconductors, far more than the world's level, but radar is still the result of the combination of semiconductor and radio cutting-edge technology, because it is advanced, so the investment is huge, just take an ordinary radar used on heavy cruise, the price is as high as 1.2 million, It's almost the same as the price of a light cruiser, if you reduce it by half, the price will be at least doubled, and if there is a build error, there will be a problem with powering up and operation, and the radar will not be usable.

After the space-based radar special project research, the monthly cost is as high as 70 million, and there is a trend of getting more and more intense, even if it is a well-informed researcher, can not help but be frightened, Northwest University received a direct grant from the central government is 1 billion, a radar research institute to the project, a year may be 840 million, this is still the current situation, once a new structure is provided, it may be more invested, success is good, once it fails, it is a big trouble.

Chinese researchers are not so conservative and not afraid to take responsibility, but the radar is unknown, and the possibility of failure is too great, if they really invest unreservedly, the monthly cost may be 10 times that of the current one, or even a year or two without results.

With such an investment, even Yang Yuanzhao felt a headache, he felt for the first time that he had made these things out in advance, and the cost was too great, fortunately it was just a simple airborne radar, not a fire control system, if the fire control system and missiles were added, I am afraid that the investment would be greater, he could only mention it according to his impression, and urged the people below to carry out experiments.

For Doppler, many people know that this is a theory put forward in the mid-to-late 19th century, and it has been more than 50 years now, and it is no longer a blockade technology.

Sure enough, there is an asympathy between the two, based on the Doppler effect, coupled with the proposal of a single pulse, some researchers have inspiration, theories and designs begin to erupt, and after completing a series of theoretical and computational work, there is a 30% chance of success.

30% of the probability of success, in some fields, is already quite low, into it, will produce a huge waste, can be placed in the radar, the world's most cutting-edge project, 3 percent is not low, the previous projects, even if the researcher is confident and optimistic, can have a 5% success rate is already good, such a success rate, even how radical the researcher, do not dare to take a casual start, but 30%, most of the personnel have seen the dawn.

The original road can't go through, you can only find another way, this unique radar, the probability of success is more than 3 percent, it is already worth betting, even if it fails, it is equivalent to accumulating experience for success, because the direction is right.

When everyone thought that the next step was to make a prototype, it was surprising that Yang Yuanzhao, who was promoting the research of airborne radar, thought that it was necessary to slow down, and his opinion was recognized by the chief researcher of the radar research institute, and he also thought that wait, in the previous research, there were still some problems that had not been solved, some were problems of theoretical cognition, and there was no way to solve them for the time being, but others, with a little in-depth research, should be able to be solved.

The chief took out the route and direction, and everyone began to march in the direction, continuing to calculate in depth, and sure enough, the results came out one by one, and some of the theories about the combination of Doppler and single pulse were clarified, and under the deeper theory and more personnel, 5 formulas about the two were deduced, and the problems that plagued Doppler radar were basically solved, and according to the current success rate, the success rate has passed 50%.

Fifty percent of the success rate, even if such a radar uses China's most cutting-edge semiconductor materials, and even uses new materials that can only be used by all-in-one machines, it is enough to give it a try, even if it fails, it can also sum up experience. (To be continued.) )