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公开(公告)号：US3803604A
公开(公告)日：1974-04-09
申请号：US26953672
申请日：1972-07-07
Applicant: RCA CORP
Inventor： CASE B
CPC classification number: G01S13/72 , G01S13/79 , G01S13/9303
Abstract: A digital tracker of aircraft represented by a binary coded signal particularly suited for a midair collision avoidance system such as SECANT, an acronym of a system for separation control of aircraft by non-synchronous techniques. The tracker located on an aircraft station receives pulses, representing both interrogation responses, termed ''''hits,'''' from other aircraft in the environment to ''''probe'''' interrogation signals transmitted from the station aircraft, and interrogation responses, termed ''''fruit,'''' from other aircraft responding to interrogation (probe) signals from aircraft other than the aircraft station. The tracker provides an output comprising the average ''''target'''' range of aircraft within a predetermined critical range of the station aircraft, as well as the target''s range rate, the rate at which the range is changing, and the time (''''tau'''') to possible impact with the target.
Abstract translation: 由二进制编码的信号表示的飞行器的数字跟踪器，特别适用于诸如SECANT之类的空中碰撞避免系统，用于通过非同步技术对飞机进行分离控制的系统的首字母缩略词。 位于飞机站上的跟踪器接收来自环境中其他飞机的“探测”询问信号的来自其他飞机的询问响应（称为“命中”）的脉冲，以“探测”从飞机飞行器发送的询问信号，以及来自其他飞机的询问响应 响应来自飞机以外的飞机的询问（探测）信号。 跟踪器提供包括在飞机的预定临界范围内的飞机的平均“目标”范围的输出，以及目标的范围速率，范围正在改变的速率，以及时间（“τ”）到 可能与目标的影响。
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公开(公告)号：US3803605A
公开(公告)日：1974-04-09
申请号：US26953872
申请日：1972-07-07
Applicant: RCA CORP
CPC classification number: G01S13/72 , G01S13/79 , G01S13/9303
Abstract: A limiter for the track gate rate of movement of a target being tracked by a radar system. The movement of the track gate is limited to a small increment, such as + OR - 1/120 nautical miles, between consecutive probe pulses requiring also that a target response must be in fact received in order to produce movement of the track gate. The probability that the track gate will be ''''pulled-off'''' a valid target by false targets or other noise is reduced significantly. Particularly suitable for a midair collision avoidance system such as SECANT.
Abstract translation: 用于由雷达系统跟踪的目标的轨道移动速度的限制器。 轨道门的移动被限制在连续探测脉冲之间的小增量，例如+/- 1/120海里，还需要实际上接收目标响应以产生轨道门的移动。 轨道门将通过假目标或其他噪声“脱离”有效目标的概率显着降低。 特别适用于SECANT等空中避碰系统。
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公开(公告)号：US3803602A
公开(公告)日：1974-04-09
申请号：US26953572
申请日：1972-07-07
Applicant: RCA CORP
CPC classification number: G01S13/72 , G01S13/70 , G01S13/79 , G01S13/9303
Abstract: A computer for determining range rate in knots of a target being tracked by a radar system. The range rate is determined from any change in target range that occurs during a tracking period. Statistical smoothing is used to increase accuracy of the calculated range rate. This is achieved by summing and storing the target range count for a first and third portion of a full track period and interrupting the summing and storing step for an intermediate second portion of the track period. The difference of the first and third range count is divided by an appropriate conversion factor to determine the range rate and also the polarity relation indicating an approaching or departing target. Particularly suitable for a midair collision avoidance system such as SECANT.
Abstract translation: 用于确定由雷达系统跟踪的目标的节点的距离率的计算机。 范围速率由在跟踪期间发生的目标范围的任何变化确定。 统计平滑用于提高计算范围速率的精度。 这是通过对整个轨道周期的第一和第三部分的目标范围计数进行求和和存储来实现的，并且中断对于轨道周期的中间第二部分的求和和存储步骤。 将第一和第三范围计数的差值除以适当的转换因子，以确定范围速率以及指示接近或离开目标的极性关系。 特别适用于SECANT等空中避碰系统。
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