 |
 OPS-12 on JDS Kurama (DDH-144) | |
| Country of origin |  Japan |
|---|---|
| Introduced | 1980 |
| Type | 3D Air-search |
| Frequency | S band |
| Azimuth | 0-360° |
OPS-12 is a shipborne long range air search 3D radar adopting passive electronically scanned array (PESA) technology. It was one of the first PESA radars employed on an operational warship, introduced in 1980 by the Japan Maritime Self-Defense Force.
In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio waves that can be electronically steered to point in different directions without moving the antennas.
An active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled array antenna in which the beam of radio waves can be electronically steered to point in different directions without moving the antenna. In the AESA, each antenna element is connected to a small solid-state transmit/receive module (TRM) under the control of a computer, which performs the functions of a transmitter and/or receiver for the antenna. This contrasts with a passive electronically scanned array (PESA), in which all the antenna elements are connected to a single transmitter and/or receiver through phase shifters under the control of the computer. AESA's main use is in radar, and these are known as active phased array radar (APAR).
A low-probability-of-intercept radar (LPIR) is a radar employing measures to avoid detection by passive radar detection equipment while it is searching for a target or engaged in target tracking. This characteristic is desirable in a radar because it allows finding and tracking an opponent without alerting them to the radar's presence. This also protects the radar installation from anti-radiation missiles (ARM).
The HQ-16 is a medium range semi-active radar homing surface-to-air missile developed by the People's Republic of China.
The AN/APQ-181 is an all-weather, low probability of intercept (LPI) phased array radar system designed by Hughes Aircraft for the U.S. Air Force B-2A Spirit bomber aircraft. The system was developed in the mid-1980s and entered service in 1993. The APQ-181 provides a number of precision targeting modes, and also supports terrain-following radar and terrain avoidance. The radar operates in the Ku band. The original design uses a TWT-based transmitter with a 2-dimensional passive electronically scanned array (PESA) antenna.
The AN/FPS-108 COBRA DANE is a PESA phased array radar installation operated by Raytheon for the United States Space Force at Eareckson Air Station on the island of Shemya, Aleutian Islands, Alaska. This radar system was built in 1976 and brought on-line in 1977 for the primary mission of gathering intelligence about Russia's ICBM program in support of verification of the SALT II arms limitation treaty. Its single face 29 m (95 ft) diameter phased array radar antenna 52.7373°N 174.0914°E faces the Kamchatka Peninsula and Russia's Kura Test Range. COBRA DANE operates in the 1215–1400 MHz band.
The S1850M is a long range radar with a digital antenna array for wide area search in elevation. The S1850M is produced by BAE Systems Integrated System Technologies and Thales. It is a modified version of the Thales Nederland SMART-L radar. The S1850M is advertised as being capable of fully automatic detection, track initiation and tracking of up to 1,000 targets at a range of 400 kilometres (250 mi). It is also claimed to be highly capable of detecting stealth targets, and is able to detect and track outer atmosphere objects at short range, making it capable of forming part of a Theatre Ballistic Missile Defence system.
The RBE2 is a multirole radar developed during the 1990s for the Dassault Rafale, a French combat aircraft. The original RBE2 is a passive electronically scanned array. This has since been developed into the RBE2-AA, an active electronically scanned array.
Safaricom PLC is a listed Kenyan mobile network operator headquartered at Safaricom House in Nairobi, Kenya. It is the largest telecommunications provider in Kenya, and one of the most profitable companies in the East and Central Africa region. The company offers mobile telephony, mobile money transfer, consumer electronics, ecommerce, cloud computing, data, music streaming, and fibre optic services. It is most renowned as the home of MPESA, a mobile banking SMS-based service.
A passive electronically scanned array (PESA), also known as passive phased array, is an antenna in which the beam of radio waves can be electronically steered to point in different directions, in which all the antenna elements are connected to a single transmitter and/or receiver. The largest use of phased arrays is in radars. Most phased array radars in the world are PESA. The civilian microwave landing system uses PESA transmit-only arrays.
The Zhuk are a family of Russian all-weather multimode airborne radars developed by NIIR Phazotron for multi-role combat aircraft such as the MiG-29 and the Su-27. The PESA versions were also known as the Sokol.
The Bars (Leopard) is a family of Russian all-weather multimode airborne radars developed by the Tikhomirov Scientific Research Institute of Instrument Design for multi-role combat aircraft such as the Su-27 and the MiG-29.
Electronics and Radar Development Establishment (LRDE) is a laboratory of the Defence Research & Development Organisation (DRDO), India. Located in C.V. Raman Nagar, Bengaluru, Karnataka, its primary function is research and development of radars and related technologies.
The Russian BRLS-8B "Zaslon" (Barrier) is an all-weather multimode airborne radar developed between 1975 and 1980 by the Tikhomirov Scientific Research Institute of Instrument Design as part of the weapons control system of the MiG-31 supersonic interceptor. The NATO reporting name for the radar is Flash Dance with the designations "SBI-16", "RP-31", "N007" and "S-800" also being associated with the radar.
M-Pesa is a mobile phone-based money transfer service, payments and micro-financing service, launched in 2007 by Vodafone Group plc and Safaricom, the largest mobile network operator in Kenya. It has since expanded to Tanzania, Mozambique, DRC, Lesotho, Ghana, Egypt, Afghanistan, and South Africa. Meanwhile, services in India, Romania, and Albania have been terminated amid low market uptake. M-Pesa allows users to deposit, withdraw, transfer money, pay for goods and services, access credit and savings, all with a mobile device.
Frequency agility is the ability of a radar system to quickly shift its operating frequency to account for atmospheric effects, jamming, mutual interference with friendly sources, or to make it more difficult to locate the radar broadcaster through radio direction finding. The term can also be applied to other fields, including lasers or traditional radio transceivers using frequency-division multiplexing, but it remains most closely associated with the radar field and these other roles generally use the more generic term "frequency hopping".
The Provisions of the Panchayats Act, 1996 or PESA is a law enacted by the Government of India for ensuring self governance through traditional Gram Sabhas for people living in the Scheduled Areas of India. Scheduled Areas are areas identified by the Fifth Schedule of the Constitution of India. Scheduled Areas are found in ten states of India which have predominant population of tribal communities. The Scheduled Areas, were not covered by the 73rd Constitutional Amendment or Panchayati Raj Act of the Indian Constitution as provided in the Part IX of the Constitution. PESA was enacted on 24 December 1996 to extend the provisions of Part IX of the Constitution to Scheduled Areas, with certain exceptions and modifications. PESA sought to enable the Panchayats at appropriate levels and Gram Sabhas to implement a system of self-governance with respect to a number of issues such as customary resources, minor forest produce, minor minerals, minor water bodies, selection of beneficiaries, sanction of projects, and control over local institutions. PESA is an Act to provide for the extension of the provisions of Part IX of the Constitution relating to the Panchayats and the Scheduled Areas. PESA was viewed as a positive development for tribal communities in Scheduled Areas who had earlier suffered tremendously from engagement with modern development processes and from the operation of both colonial laws and statutes made in independent India. The loss of access to forest, land, and other community resources had increased their vulnerability. Rampant land acquisition and displacement due to development projects had led to large scale distress in tribal communities living in Scheduled Areas. PESA was seen as a panacea for many of these vulnerabilities and sought to introduce a new paradigm of development where the tribal communities in such Scheduled Areas were to decide by themselves the pace and priorities of their development.
The Pesa Atribo is an articulated diesel multiple unit for regional train services made by Pesa SA of Poland.
SportPesa is a sports news technology and sports betting brand with operations in Kenya, Tanzania, South Africa, Italy, Ireland, the Isle of Man, and the UK, where it operates in conjunction with TGP Europe.
The Pesa Link is a family of diesel multiple unit trains built by Pesa.