摘要:

The paper is a personal account of the author's involvement in radar research from the beginning of 1938 up to the end of the Second World War. First, the paper describes the early research work carried out at the Air Defence Research and Development Establishment (ADRDE), in which the author was involved, on radio direction finding. The paper then describes the Tizard Mission to North America, to open up the exchange of information on radar equipments with the USA and Canada. The main body of the paper comprises an account of the various equipments produced by ADRDE itself, and also in collaboration with other Establishments such as the Telecommunications Research Establishment and the Admiralty Signals Establishment in the UK, and the National Defense Research Committee in the USA.

DOI:10.1049/ip-a-1.1985.0069

出版商:IEE    

年代:1985

数据来源: IET

摘要:

The paper is a composite survey of the work of TRE over a period of three years on radio aids up to the launching of the invasion of Europe. It was written to put on record the way in which ideas and equipments developed so that future Experimental Establishments may benefit from our successes and mistakes. Each Group which was involved has contributed information on its particular work and it is hoped that the picture is complete. The greater part of the paper deals with the use and applications of radio in the reopening of the Battle of France.

DOI:10.1049/ip-a-1.1985.0070

出版商:IEE    

年代:1985

数据来源: IET

摘要:

Radar, both ship-borne and airborne played a vital part in preventing the defeat of Britain in the Battle of the Atlantic. The Telecommunications Research Establishment (TRE) was responsible for the airborne radar for the RAF and FAA. A detailed account of the work on the airborne detection of surface vessels, starting with the first experiments in 1937, is given in the paper. ASV (aircraft to surface vessel) started its life as an equipment intended for the detection of surface vessels. The importance of the submarine during the Second World War deflected attention, to a very large extent, from ASV's original role. As the war progressed more and more attention became focused on the improvement of the equipment to enable it to detect submarines with less and less showing above the surface of the sea.

DOI:10.1049/ip-a-1.1985.0071

出版商:IEE    

年代:1985

数据来源: IET

摘要:

The system of interception devised to observe, engage and destroy enemy night bombers is known as ground-controlled interception (GCI). The aircraft involved are fitted with an airborne radar for airborne interception (AI) to help them in intercepting the enemy aircraft. The early Marks of AI used a 1.5 m carrier wavelength and had some problems. The early AI radar sets had a very limited range (less than the altitude of the fighter) and were susceptible to jamming by the enemy. This problem led to the development of AI radar sets operating on shorter centimetre wavelengths (S-, X- and K-bands) which had a much greater range and were much less susceptible to jamming by the enemy. The paper describes centimetre AI, and the theory of the system is given. An analysis and discussion of the operational results is also given.

DOI:10.1049/ip-a-1.1985.0072

出版商:IEE    

年代:1985

数据来源: IET

摘要:

The paper describes the history and development of the Oboe bombing-guidance system, and its applications. Oboe is a ground-controlled system, and the ground based operators give instructions to the bomber crews. There are several different versions of the equipment, all operating on different wavebands. The paper gives the theory of the system, and the technique of its use in operation. The subsequent use of Oboe in Operation Trinity (a bombing raid on Brest Harbour in France) and the problems experienced (mainly due to interference from other navigational radar systems) are also described.

DOI:10.1049/ip-a-1.1985.0073

出版商:IEE    

年代:1985

数据来源: IET

摘要:

At the beginning of the Second World War, accurate navigation at night over enemy territory was only possible on moonlit nights. On other nights, when flying through and over cloud and bad visibility, navigation was much more of a hit and miss affair, and a case of hoping that the bombs had been dropped on an enemy target. However, with the arrival of H2S, the navigator's job was made much easier, and he could then obtain a much more accurate position, in conjunction with conventional dead-reckoning navigation techniques. The paper describes the impact that H2S had on navigation on night sorties over enemy territory.

DOI:10.1049/ip-a-1.1985.0074

出版商:IEE    

年代:1985

数据来源: IET

摘要:

In March 1942, the first radar aid to navigation GEE was introduced. However, GEE could be jammed, its range was limited and positional accuracy was not good enough for the needs of the RAF. Against this background H2S was developed, and the paper describes the early research and operational work carried out on the system.

DOI:10.1049/ip-a-1.1985.0075

出版商:IEE    

年代:1985

数据来源: IET

摘要:

H2S Marks IV and VI were conceived as aids to blind bombing and navigation for the RAF sorties over Germany. H2S was entirely self contained and did not require any ground tracking stations. Marks IV (X-band) and VI (K-band) are described in the paper, and how they were developed from the earlier Marks of H2S.

DOI:10.1049/ip-a-1.1985.0076

出版商:IEE    

年代:1985

数据来源: IET

摘要:

The paper is an account of the work of the Ground Radar Division of TRE following the development of the Chain Home system (CH). It is concerned first with improving air defences against night bombers and low flying aircraft and then, as the war swung in the favour of the British, with radar support for offensive action by the RAF and later by the Allied Armies landing in Europe. It includes a short discussion of airborne interception radar (AI).

DOI:10.1049/ip-a-1.1985.0077

出版商:IEE    

年代:1985

数据来源: IET

摘要:

The paper records the part played by the Telecommunications Research Establisment (TRE) in the development of the art and technique of radio countermeasures, and to crystallise the experience gained during the Second World War. It does not attempt to deal comprehensively with the whole story, as the contribution of the TRE was only a small part of the whole. The paper describes the use of radio countermeasures, first as a defence against enemy bomber attacks and later in support of our offensive operations. Sections describing the technique and the applications to the final phase of the Second World War have been omitted but are included in the copy deposited in the IEE Archives.

DOI:10.1049/ip-a-1.1985.0078

出版商:IEE    

年代:1985

数据来源: IET