Radar, sonar and other modern military sensors
- Thread starter Ambivalent
- Start date
Engineer
Major
Good. If you catch anyone claiming SPG-62 can direct multiple SAMs to multiple targets and in the very next instance claim how Chinese or Russian illuminators can't do it, I hope you will call him out on that.
Depending on mechanical limitations, Chinese and Russian illuminators can do it though, although both countries don't actually use a "pure" illuminator like the SPG-62.
That's because these so called "illuminators" appear to be as true radars, capable of tracking and generating tactical range information. For the operators that would mean a display where the radars could not only track heading, but display range information and therefore location.
Not just ship fire control radars, but also land fire control radars.
These radars would be implementing FMCW, if separate transmitting and receiving arrays are observed. Or they may be implementing ICW or FMICW, if a single array is observed, where interruption is used to produce send and receive time sharing on the same array.
However, I think they are using this sort of ICW, as opposed to what Ambi is describing. These are not pure illumination devices, but true, self contained radars.
You also don't need to change frequency. Just change the frequency modulation for different missiles, so each uses a different modulated wave form for reference.
That's because these so called "illuminators" appear to be as true radars, capable of tracking and generating tactical range information. For the operators that would mean a display where the radars could not only track heading, but display range information and therefore location.
Not just ship fire control radars, but also land fire control radars.
These radars would be implementing FMCW, if separate transmitting and receiving arrays are observed. Or they may be implementing ICW or FMICW, if a single array is observed, where interruption is used to produce send and receive time sharing on the same array.
However, I think they are using this sort of ICW, as opposed to what Ambi is describing. These are not pure illumination devices, but true, self contained radars.
You also don't need to change frequency. Just change the frequency modulation for different missiles, so each uses a different modulated wave form for reference.
If I look at actual Russian and Chinese examples of illuminators or illuminating radars, they're phase array like Orekhs on the Sov class ships or said copies on the 054A. Now for mechanical ones like the one used on the HQ-7, they're command guided in the first place.
Ambivalent
Junior Member
SPG-60 has a CWI mode that allows it to illuminate a target for Standard if necessary.
Ambivalent
Junior Member
I'v been trying for quite a long time to find open source information on rosette scanning in CW radars. I have a description of it in an Italian book on electronic warfare, but can find nothing about it on line. It is used by CW radars in the USN, I have seen them in use, but I cannot find a source on the internet to confirm this.
Rosette scanning creates four separate lobes in the radar beam, a target reflected in one lobe will not be reflected in any other lobe. Such radars are not difficult to pick out in use as the feed horn oscillates rapidly in a figure eight pattern. Whether or not the SPG-62 incorporates a rosette scan is not known to me, but would help explain how it achieves ICIW as I have described.
Rosette scanning creates four separate lobes in the radar beam, a target reflected in one lobe will not be reflected in any other lobe. Such radars are not difficult to pick out in use as the feed horn oscillates rapidly in a figure eight pattern. Whether or not the SPG-62 incorporates a rosette scan is not known to me, but would help explain how it achieves ICIW as I have described.