Chapter 1581: Technology is combat power (part 2)

"The first introduction is of course this set of miniature infrared/low light night vision equipment." Tan Zhenhua pointed to a small cylinder on the left side of the helmet that can be turned upside down and said: "Look, Master Ding, this equipment is operated by the "Matrix" laboratory. Developed jointly with Huaxia Optoelectronics, it can freely switch between infrared and low light working modes, and has the ability to detect the human body within a range of 600 meters. It is installed on the upper left side of the helmet through a guide rail and a Velcro."
Then, Tan Zhenhua turned the helmet to show the other side and then introduced:
There is a single-soldier digital single-sideband communication terminal equipped with frequency hopping technology based on the
Fuzzy
rule. The equipment, limited by its volume and weight, can only achieve frequency agility of 5120 times per second at present, and there is still a lot of room for improvement in the future. However, this is already more resistant than the military single-sideband communication equipment commonly used by China. The interference ability is much stronger."
As soon as he said this, Ding Wei's face suddenly changed slightly. The Chief of Staff Ye Feiye behind him suddenly remembered the "teasing you play" like a magic sound, his face was already black enough to drip ink.
In modern warfare, battlefield communication is one of the most important tactical support systems. In this exercise, the "Blue Army" demonstrated strong electromagnetic control and management capabilities, and even carried out "inhumane" electromagnetic attacks on the "Red Army". , Put a cross talk in the opponent’s battlefield command communication channel, Nima can think of how bad the conscience of the person who hurt this trick...
Tan Zhenhua involuntarily pulled the corners of his mouth, barely maintaining a serious face, and then said: "Single-sideband communication technology and frequency hopping technology are both very mature military communication technologies, especially frequency hopping technology, which will be a broadband The band is divided into a number of narrow frequency bands, and both sides of the communication transmitter and receiver will hop synchronously according to the pre-appointed frequency hopping pattern to achieve the purpose of anti-interference and anti-leakage. In China, the largest military single-sideband communication product manufacturer is Ningdu The 4714 factory, in fact, the single-soldier digital single-sideband communication terminal in front of you was jointly developed by the "Matrix" laboratory and the factory. However, compared with previous products, the performance has been greatly improved. improve."
When he said this, he paused, glanced at the faces of the three visitors, shook his head and said: "It's not that there is a leak of secrets as you thought. In fact, there is no need to do that, because it can be achieved by technical means. purpose."
Then, he explained: "Compared with the most primitive fixed frequency modulation/amplitude modulation communication, frequency hopping communication is a huge technological advancement. The basic principle is that under the condition of synchronization and at the same time, the transceiver ends in a specific pattern. For a non-specific receiver, the signal with constantly changing frequency will be treated as impulse noise and removed by the filter circuit of the receiver. Therefore, as long as the third party is not clear about the law of carrier frequency hopping This kind of communication is relatively concealed and difficult to intercept, so as soon as this technology appeared, it immediately became the first choice for military communication equipment."
"However, with the continuous advancement of technology, corresponding countermeasures have also been developed in recent years. When I was studying in the U.S., I learned in detail about the research of the U.S. Army in this area, and Chief of Staff Ye was on the battlefield. The situation encountered is one of the research results of Americans."
Although Ding Wei, Lin Bo, and Ye Fei were not from technical arms, they still showed a keen interest in this topic out of their desire to explore new things on the battlefield.
"From the working principle of the frequency hopping system, we know that any external interference, only when its spectrum falls within the instantaneous bandwidth of the useful signal, and the interference power is large enough, may affect the correct reception of the useful signal. Tracking interference within a certain instantaneous bandwidth of the frequency hopping signal may only affect the correct reception of this instantaneous useful signal." Tan Zhenhua continued his own explanation: "Due to the current technical limitations, China's large-scale standard single-sideband equipment The communication equipment uses a digital and analog hybrid circuit and works in the conventional frequency hopping mode. The frequency hopping "code sequence" is a "pseudo" random sequence designed based on m-sequence, M-sequence, RS code, etc. The reason why it is called " "Pseudo" is because it is actually programmed in advance and has certain coding rules. These "pseudo" random code sequences are realized by shift register and feedback structure. The structure is simple, the performance is stable, and the synchronization can be achieved quickly. Hamming-related The characteristics are also better. However, it should be pointed out that when there is deliberate interference, the anti-interference ability of these sequences is relatively poor, and the most typical way to achieve this interference is to predict the "code sequence" and then track it. Interference, that is, the means used by the "blue army" in the exercise-monitoring and mastering the electromagnetic spectrum characteristics of the "red army"."
"The reason why the Blue Army can do this is because in the Blue Army’s equipment sequence, analog equipment has been completely eliminated, and the gap between all-digital equipment and analog equipment is just like the "59 type" and the "88 type". "The gap between tanks is so big." Tan Zhenhua gave a very vivid example and explained: "After the application of all digital circuits, the "Blue Army" has a strong electromagnetic intelligence initiative, and through large-scale induction The way the "Red Army" conducts battlefield communications has successfully collected the spectrum characteristics of massive "Red Army" communication equipment. With massive amounts of basic data, the "Blue Army" can use the super computing power of the main computer in the C3I command system. Statistics and analysis of these data can make a certain degree of prediction on the coding rules on this basis. We know that communication equipment based on analog circuits has relatively poor adaptability. It can basically only Limited adjustments are made in accordance with the pre-planned rules, which gives the "Blue Army" enough space to perform targeted electronic interference. The "Blue Army" is also equipped with a complete set of equipment that can implement large-scale electronic interference in the air , And before the engagement war was about to start, this combat plan was successfully implemented, which completely cut off the communication between the "Red Army" divisional command and combat units at all levels. In my personal opinion, this is the most important exercise in the exercise. The winner."
The three listeners nodded silently. Indeed, compared to the "hard goods" weapons such as tanks, artillery and helicopters, the biggest difference between the "Red Army" and the "Blue Army" is the control over the electromagnetic power and information power of the battlefield, and nothing else. Just look at the individual helmet in front of you to know how much money the "Blue Army" has spent in order to lead in this regard-they even equipped every soldier with this seemingly not cheap radio station!
"Each soldier is equipped with more than night vision and communication equipment." Tan Zhenhua took out a small box with an antenna and said: "Every soldier and every vehicle of the Blue Army , They all carry this kind of miniature information terminal. This terminal contains a GPS signal receiving system. Through this device, they can know the latitude and longitude of their current location in real time, and cooperate with the digital map entered in the information terminal in advance. The location and surrounding environment and the deployment of the enemy are well known. Whether it is day or night, they will never lose their position and direction on the battlefield."
Ding Wei took this small information terminal, held it in his hand, played with it for a while, and then asked, "Is this also a device made by Huaxia itself?"
Tan Zhenhua shrugged and said: "Strictly speaking, it is not. This is a consumer-grade handheld computer launched by Apple in 1993. The name is "Newton". The "Blue Army" is equipped with a specially customized version. Well, it uses the CPU architecture developed by a company named ARM under my name in London. The CPU, memory and flash memory are manufactured by "Huaxin Microelectronics" under my name, and the whole machine is made by another company. The company under the name "Foxconn" conducts foundry assembly. The operating system uses a simplified version of the "iDoor" system authorized by the "Matrix" laboratory. Well, to count this, this thing is made by our own, and it is not bad. Too far."
Ding Wei stayed silent for a long while, and finally sighed: "Dr. Tan, I'm really convinced this time, you said yes, technology is combat effectiveness!"