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Seven years ago, the Huangpu River into a curtain Zhang sleeve of a robe , people's eyes are focused on a new dock warships , with the siren sounded, warships slowly into the Huangpu River , this moment is history Bearing in mind : It indicates that China truly formally launched the third generation of destroyers , Navy ships will leave from the Red Sea Red 7 and 61 air defense system composed of the sea from our naval truly the days of the regional air defense capability is not far . After a lapse of seven years, then fiery passion cooled somewhat , but fragmented discussion , the argument is also a period of seven years through a variety of collision, out of and integration , the more accurate and complete summary of the technical and tactical performance 052C At the different . 052C air defense core developed by the first generation of our own ship-borne active phased array radar systems and remote initiative Missile composed of nine red sea , on the 052C models are very active or passive phased array radar, the question now has been basically Vanished. We may wish to further untie her clothes yarn, a glimpse of the radar hardware, the tip of the iceberg . Is limited, you criticize the view, start a discussion . Early active phased array using a vacuum device as a radiation unit , such as 60 years in the 20th century, the United States developed the world's first active phased array radar AN/FPS85, the transmitting antenna array 4 from the 5184 vacuum tubes , Average power over 400KW. Although vacuum tube power output with low cost and high merit, but disadvantages are obvious , such as peak power because the requirements are also made on the feeder high 's demand and such as work Daikuan narrow , high power consumption and heat , reliable Of low , in particular the problem as a number of specific volume set on the platform on the use of fatal injury . The 21st century, surface ships, the face of growing threats from the air , because a relatively large range anti-ship missile upgrade , surface vessels to intercept the target has been the main launch platform from the enemy to all kinds of anti-ship missiles . Most ship-borne phased array radar will not only want to target several groups of high-altitude surveillance of remote identification , to provide early warning for the fleet , but also have a small target on the low-altitude approaching fast acquisition and stable tracking ability to guide the ship to air missile interception mission This requires not only a distant radar detection range also has a good angular resolution . We know that under the same aperture size , wavelength and angular resolution is inversely proportional , and proportional to the distance detection , so the design of phased array radar, according to different tasks select the appropriate frequency . On large-scale air defense frigates equipped with the phased array radar , detection range and accuracy requirements are not low , so the work in the 2.0GHz-4.0GHz frequency selection is more appropriate , such as the SPY-1, Sampson and the future carry on DDG1000 of VSR Are working in S -band , 052C on the phased array radar is clearly not out of the area . For the active array, in addition to select the appropriate wavelength of foreign and maintain a low side lobe in the premise , but also further improve the radar 's average power requirement , the easiest way is to increase the number of radiation units , but a specific set of stringent restrictions due to the space station , there is a great limitation of this method . So can only hope that the power density in the active matrix and to raise both front of the transmission signal output per unit area increase in average power . Meanwhile, in order to improve the measurement accuracy of target identification, and has good anti-interference ability , also requires the work of the radar bandwidth and large signal bandwidth . In addition MTBF ( mean time without failure ) is also active array is an important technical and tactical targets . In summary, the carrier is not difficult to find active bursts of surface materials have both the ability to work well high- frequency , large bandwidth, but also the work of a high power density , small size and high reliability , taking into account the cost . Obviously difficult to meet the vacuum device , which prompted the application of microwave transistors . Now the crystal processing techniques and tactics of active phased array radar needs , the operating frequency in the S -band active array above , use of microwave transistors gallium arsenide (GaAs) and silicon suitable two-stage transistor . The choice between the two to take , and if costs can be accepted in the scope and technical conditions allow so, on GaAs is superior. Because GaAs frequency can be much higher than silicon bipolar , which can provide instantaneous bandwidth radar great design margin, and the instantaneous bandwidth can not do high- resolution radar will be directly affected , but also relates to power Warfare capabilities, so if the conditions to support technology , GaAs is a better choice . However, GaAs will also have a choice of two questions , 1. costs . To the previous processing level , GaAs silicon bipolar cost of pipe 2,30 times, and good product is low , even at 94,95 in the background processing technology at the time , GaAs costs several times more than in silicon bipolar . 2.GaAs pulse power levels much lower than silicon bipolar , power, power is difficult to bigger and also made sure the accuracy of time-sharing high demands , if not properly grasp the breakdown could lead to direct . These two conditions for my speculation is given below premise . On the other side , there is a ship-borne active phased array radar and the 346 is similar , it is the highest level on behalf of the European core of Type45 destroyers , " Sampson "radar , Sampson is also working band S -band radar alone Front from the 2600 GaAs , four packages each into a T / R modules of 650 T / R module composed of a maximum detection range of 450 km , 320 km at this distance can also track the 4000 target And can simultaneously target of 168 which set up a stable track . Sampson could also guide the 32 aster (Aster 15/30) block of 16 goals . Sampson and asters can be well married, their performance will take full advantage of each other without reservation . Taking into account the domestic electronics industry and practical application水平, there are sufficient grounds to believe 052C Xing Suo destroyer radar with the MMIC 346 is used in silicon bipolar transistors , because the radar is in terms of cost and technical conditions and other objective factors ( such as the sources of supply ) the result of a compromise between the balance . Only one front view, the hardware does exist between 346 and Sampson . But Sampson is also weighing the technical conditions and cost factors of the product , so only a fixed array from the original four -sided reduction to the current array of changes . Choose to GaAs as a radiation unit may not lead to price increases of all the reasons leading to this change , but not with nothing . Fleet air defense from the point of view , four arrays of 346 at the starting point is obviously has some advantages . Sampson in MESAR-2 single fixed active phased array radar based on the development , Sampson initially planned four array layout is fixed . At present, China 's military-industrial information age ride in the fast lane , was there a more solid economic base for support , the environment and conditions are far from the " atomic bomb , or boiled eggs "period can not match. And because there is a "strong potential threats "in the context of the grim face of reality , our national defense increasingly urgent demand driven , the military electronics and machinery industries should be optimistic about the prospects . We have reason to believe that 346 of the follow-up model , both in terms of hardware or back-end , will quickly narrow the gap with Europe and the United States advanced level . This is also looking forward to China's national defense building in the backbone is a series of military products could soon be 100 % of the "made byChina", no longer subject to another , completely reversed the production strategy of passive situation in the logistics industry . Taking into account the continuity of the project , further paved the way engineering more thick , making this technical training hotbed of talent , the future of 052C + The MMIC may continue to use silicon bipolar , may focus on the direction of improvement In the back-end software and algorithms. Looking at the more distant future , really big drive of the tiles may skip the second generation of MMIC 's GaAs, while the direct use of third-generation of wide- band MMIC - Gallium Nitride (GaN), GaN breakdown field / voltage silicon bipolar and GaAs is several times more than several times to further enhance the benefit of active matrix array surface power density. GaN also has more excellent than the high- frequency GaAs ability to work and better thermal stability , can work at higher temperatures . GaN microwave power amplifier as the active array will be the future development of a mainstream direction . Ship into the water from the 116 it has now been a full 4 years , concern the construction of large naval military members in the past four years time the new feeling of hope for a drive no cut -off points , and now all the phenomena that the new drive 052C + birth soon We will regain the year or "Jiangnan Four Swordsmen " when one after another into the water that " the years of passion . " While the new drive has not come out , all the conjecture about her has already spread, the combed aggregate information from various quarters , personal guess 052C + basic properties are as follows Displacement: 7,000 tons ( often exclusive ) Power Type : CODOG guns : single 130 pairs of empty radar : 346 Change , cottage Smart-L and 364 search radar, fire control radar speed : 344A, 347G antiaircraft fire : the sea of red 9X60 followed 730 Active / Passive Sonar : follow the 052C and 206 of active sonar submarine Towed Line Array fire : a new type of torpedo that Among them, perhaps 052C + in the end is the most interesting honeycomb or chocolate . I think we should discuss this issue from a different point of intercept missiles fired hot and cold . Cold launched missile firing, the bottom of the gas generator to promote the work of pulling the piston rod cylinder and driven missiles , the missile is then subject to a large vertical transient overload , the thermal emission missile launch , some gas will hit the lower lids Be turned back , there will be pressure and wave speed of sound throughout the missiles , missile components caused by transverse vibration response , in response to both, cold and hot in the design of missile launching the beginning of the projectile and the internal Yuanqi Jian Jia Gu Consideration is different. So 052C + or eight with HQ16 + fish + chocolate , plus installation of radar radiation , or put red wine to reinvent the wheel . Indeed, not only of cost but also to keep in line with the 052C at the tactical level , the continued and even be honeycomb is the best choice. Taking into account the replenishment period , single aircraft carrier battle groups ring the first layer of air defense forces a vacuum , air defense effectiveness of smaller, I guess the Navy 's first aircraft carrier battle groups to perform military tasks, will rely on other air forces to seize and consolidate maritime tactical command of the air campaign Goal. Zone defense in depth by the carrier aircraft for air defense , air defense area air defense mission area , 052C + will coordinate 052B / C and 054A with shoulder . The regional anti-submarine anti-submarine platform on the air because I is relatively weak , difficult to attack nuclear submarines with the formation of a seamless interface between the task surface , so the fish carrying eight 054A even drive a new type of communication need to fill loopholes in the region, part of the anti-submarine . Since walking is a small BKCMD Eupolyphaga line in the foreseeable future , Beidou finished second generation network , data link and fixed-wing early warning aircraft to further improve the real sea , the real big drive to bring two-way data link with a new generation of active air defense missiles , Coordinates information and data links to the Compass II , carrier and data synchronization work to the early warning chain, completely cottage Navy Standard 6 + E2D + GPS regional air defense system , the completion by the early warning of active air defense missile in the middle order correction , so that the major flooding has The ability to intercept the horizon the following objectives , to further expand the scope of the regional air defense zone . 100 years ago , coastal defense forces as weak as the people memorable of modern Chinese history , erase pain . Stormy 60 years in the Republic , the People's Navy in the mud of history weigh anchor , sail , sailing , water navy from scratch to yellow , then green water from the yellow water navy navy , and is blue- water navy to their heads held high There was no defense that a marine has always turned on . Face the reality of the challenges and potential threats , let us wish our increasingly accelerated pace of naval construction , so that our Navy go farther!
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