Distributed Antenna Autonomous Switching Method

Abstract

The present invention provides a method for autonomous switching of distributed antennas, which includes: Step 1, four satellite receiving antennas are sequentially and evenly arranged on the missile body along the circumferential direction of the missile body; Step 2, any two adjacent antennas are taken as a group, and the remaining two are taken as another group. One group serves as the working antenna group for satellite searching, and the other group serves as the backup antenna group and is in a non-working state; Step 3, a switching strategy between the two antennas of the working antenna group and the two antennas of the backup antenna group is designed according to the number of frame-synchronized satellites in the corresponding tracking channels of the two antennas of the working antenna group and the time duration measured by the corresponding tracking channel timers. This method can ensure that satellite signals are still available when inertial information is unavailable during the rolling process of the missile, and can continuously provide the position and speed information of the missile for the missile guidance and control system.

Description

Technical Field

[0001] The present invention belongs to the technical field of satellite navigation, and particularly relates to a method for autonomous switching of distributed antennas. Background Art

[0002] Satellite receivers are currently widely used in the positioning and navigation of cruise missiles. With the further development of missile technology and the increasing demand for high-precision positioning in missile guidance and control systems, satellite receivers need to meet the requirement of continuously outputting high-precision positioning results under complex working conditions. The difficulty lies in how to ensure that the satellite receiver can still continuously receive satellite signals when inertial auxiliary information is unavailable during the missile's roll process, which has become an urgent technical problem to be solved. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, the present invention provides a method for autonomous switching of distributed antennas.

[0005] The technical solution of the present invention is as follows: A method for autonomous switching of distributed antennas is provided, and the method includes:

[0006] Step 1: Four satellite receiving antennas are sequentially and evenly arranged along the circumferential direction of the missile body on the missile body.

[0007] Step 2: Take any two adjacent antennas as a group, and the remaining two as another group. One group serves as the working antenna group for satellite searching, and the other group serves as the backup antenna group and is in a non-working state. Among them, the two antennas of the working antenna group respectively correspond to tracking channels A and B, and the two antennas of the backup antenna group respectively correspond to the tracking channels A and B. The two antennas with the same corresponding tracking channels are arranged oppositely.

[0008] Step 3: Design a switching strategy between the two antennas of the working antenna group and the two antennas of the backup antenna group according to the number of frame-synchronized satellites in the tracking channels A and B corresponding to the two antennas of the working antenna group and the time elapsed by the timers in the tracking channels A and B corresponding to the two antennas of the working antenna group. Among them, when switching is required, the two antennas with the same tracking channel are switched.

[0009] Further, the missile body includes a positive cruciform rudder surface, and among them, the four satellite receiving antennas are evenly distributed in the four quadrants formed by the positive cruciform rudder surface.

[0010] Further, among the four satellite receiving antennas, the two adjacent antennas on both sides of the vertical rudder surface directly above the positive cruciform rudder surface are always in a group, and the remaining two antennas are in another group. Before switching, when one group is working, the other group is not working.

[0011] Further, step 3 specifically includes:

[0012] 3.1. Judge the number of frame - synchronized satellites and the elapsed time of the timer corresponding to channel A and channel B of the two antennas in the working antenna group respectively, where:

[0013] If the number of frame - synchronized satellites in both channel A and channel B exceeds the set threshold N, go to step 3.2;

[0014] If the number of frame - synchronized satellites in both channel A and channel B is less than the set threshold N and the elapsed time of the corresponding timers in both channels exceeds the set time T, go to step 3.3;

[0015] If the number of frame - synchronized satellites in channel A exceeds the set threshold N, the number of frame - synchronized satellites in channel B is less than the set threshold N, and the elapsed time of the timer in channel B exceeds the set time T, go to step 3.4;

[0016] If the number of frame - synchronized satellites in channel B exceeds the set threshold N, the number of frame - synchronized satellites in channel A is less than the set threshold N, and the elapsed time of the timer in channel A exceeds the set time T, go to step 3.5;

[0017] 3.2. Then, no antenna switching is performed on both channel A and channel B. Clear the timers of channel A and channel B and go back to step 3.1 to continue the judgment;

[0018] 3.3. Then, antenna switching is to be performed on both channel A and channel B. Clear the timers of channel A and channel B and go back to step 3.1 to continue the judgment;

[0019] 3.4. Then, no antenna switching is performed on channel A and antenna switching is required on channel B. Clear the timers of channel A and channel B and go back to step 3.1 to continue the judgment;

[0020] 3.5. Then, no antenna switching is performed on channel B and antenna switching is required on channel A. Clear the timers of channel A and channel B and go back to step 3.1 to continue the judgment.

[0021] Further, the set threshold N is 4 satellites.

[0022] Further, the set time T is the time of two - frame synchronizations plus a set time margin.

[0023] Further, the set time margin is 3 s, and the set time T is 15 s.

[0024] Further, step 3.1 also includes:

[0025] If the number of frame-synchronized satellites in both Channel A and Channel B is less than the set threshold N and the elapsed time of the corresponding timers is less than the set time T, then go to Step 3.6;

[0026] If the number of frame-synchronized satellites in Channel A exceeds the set threshold N, the number of frame-synchronized satellites in Channel B is less than the set threshold N, and the elapsed time of the timer in Channel B is less than the set time T, then go to Step 3.7;

[0027] If the number of frame-synchronized satellites in Channel B exceeds the set threshold N, the number of frame-synchronized satellites in Channel A is less than the set threshold N, and the elapsed time of the timer in Channel A is less than the set time T, then go to Step 3.8;

[0028] Step 3 further includes:

[0029] 3.6. Then neither Channel A nor Channel B performs antenna switching, and the timers of both Channel A and Channel B are incremented, and go to Step 3.1 to continue the judgment;

[0030] 3.7. Then neither Channel A nor Channel B performs antenna switching, the timer of Channel A is cleared, the timer of Channel B is incremented, and go to Step 3.1 to continue the judgment;

[0031] 3.8. Then neither Channel A nor Channel B performs antenna switching, the timer of Channel B is cleared, the timer of Channel A is incremented, and go to Step 3.1 to continue the judgment.

[0032] The above technical solution evenly arranges four satellite receiving antennas along the circumferential direction of the projectile body, and takes any two adjacent antennas as a group, and the remaining two as another group. One group is used as the working antenna group for satellite search, and the other group is used as the backup antenna group and is in a non-working state. The two antennas with the same corresponding tracking channels are arranged opposite to each other, and a switching strategy between the two antennas of the working antenna group and the two antennas of the backup antenna group is designed according to the number of frame-synchronized satellites in the corresponding tracking channels A and B of the two antennas of the working antenna group and the elapsed time of the timers in the corresponding tracking channels A and B. Thus, it can perform antenna autonomous switching using its own information, ensure continuous and normal reception of satellite signals by the satellite antenna and output positioning results, and solve the problem of how to switch the distributed antennas when the inertial information is unavailable during the rolling process of the missile. Description of the Drawings

[0033] The accompanying drawings included are used to provide a further understanding of the embodiments of the present invention. They form a part of the specification, are used to illustrate the embodiments of the present invention, and together with the written description are used to explain the principles of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 shows a schematic flow chart of a distributed antenna autonomous switching method provided according to a specific embodiment of the present invention;

[0035] Figure 2 shows a schematic layout diagram of a distributed antenna provided according to a specific embodiment of the present invention. Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0038] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] As Figure 1-2 shown, in an embodiment of the present invention, a distributed antenna autonomous switching method is provided, and the method includes:

[0040] Step 1: Four satellite receiving antennas are sequentially and evenly arranged on the projectile along its circumferential direction;

[0041] Step 2: Take any two adjacent antennas as a group, and the remaining two as another group. One group serves as the working antenna group for satellite searching, and the other group serves as the backup antenna group and is in a non-working state. Among them, the two antennas of the working antenna group respectively correspond to tracking channels A and B, and the two antennas of the backup antenna group respectively correspond to the tracking channels A and B. The two antennas with the same corresponding tracking channel are arranged opposite to each other (the corresponding tracking channels of two adjacent antennas are different);

[0042] Step 3: Design a switching strategy between the two antennas of the working antenna group and the two antennas of the backup antenna group according to the number of frame-synchronized satellites in the tracking channels A and B corresponding to the two antennas of the working antenna group and the time elapsed by the timers in the tracking channels A and B corresponding to the two antennas of the working antenna group. Among them, when switching is required, the two antennas with the same tracking channel are switched.

[0043] That is, as Figure 2 shown, the four satellite receiving antennas are satellite receiving antenna 1 (hereinafter referred to as antenna 1), satellite receiving antenna 2 (hereinafter referred to as antenna 2), satellite receiving antenna 3 (hereinafter referred to as antenna 3), and satellite receiving antenna 4 (hereinafter referred to as antenna 4).

[0044] For example, in one case of division, antenna 1 and antenna 2 can be grouped into one group. Antenna 1 corresponds to tracking channel A, and antenna 2 corresponds to tracking channel B. Antenna 3 and antenna 4 are grouped into another group. Antenna 3, which is arranged opposite to (not adjacent to) antenna 1, corresponds to tracking channel A, and antenna 4 corresponds to tracking channel B. Initially, it can be defined that antenna 1 and antenna 2 are the working antenna group or antenna 3 and antenna 4 are the working antenna group, and the other group is the backup antenna group. When switching is required, the two antennas with the same tracking channel are switched, that is, antenna 1 is switched to antenna 3, and antenna 2 is switched to antenna 4.

[0045] Those skilled in the art should understand that the grouping of the above four antennas is not limited to the above situation and can also include various situations. For example, antenna 1 and antenna 4 can also be grouped into one group, and antenna 2 and antenna 3 can be grouped into one group, etc. In order to facilitate understanding of the technical solution of the present invention, the following content will illustrate the switching strategy with antenna 1 and antenna 2 as the working antenna group and antenna 3 and antenna 4 as the backup antenna group.

[0046] In addition, those skilled in the art should also understand that when the antennas are switched, the operating states of the antennas switch with each other, and the corresponding antenna grouping also changes. For example, if Antenna 1 and Antenna 2 are the operating antennas, and Antenna 3 and Antenna 4 are the backup antennas, and if Antenna 1 needs to be switched, that is, switched to Antenna 3 in the same channel, then after the switch, the grouping becomes Antenna 2 and Antenna 3 as the operating antennas, and Antenna 1 and Antenna 4 as the backup antennas.

[0047] It can be seen that in the embodiment of the present invention, four satellite receiving antennas are evenly arranged along the circumferential direction of the projectile body, and any two adjacent antennas are grouped as one group, and the remaining two are grouped as another group. One of the groups serves as the operating antenna group for satellite searching, and the other group serves as the backup antenna group and is in a non-operating state. The two antennas with the same corresponding tracking channel are arranged opposite to each other, and a switching strategy between the two antennas of the operating antenna group and the two antennas of the backup antenna group is designed according to the number of frame-synchronized satellites in the A channel and the B channel corresponding to the two antennas of the operating antenna group and the time measured by the timers in the A channel and the B channel corresponding to the two antennas of the operating antenna group. Thus, the antennas can be autonomously switched using their own information, which can ensure the continuous and normal reception of satellite signals by the satellite antenna and output the positioning result, and solve the problem of how to switch the distributed antennas when the inertial information is unavailable during the rolling process of the missile.

[0048] According to an embodiment of the present invention, the projectile body includes a cruciform rudder surface, and four satellite receiving antennas are evenly distributed in the four quadrants formed by the cruciform rudder surface.

[0049] In the above embodiment, under the condition that the missile includes a cruciform rudder surface, among the four satellite receiving antennas, the two adjacent antennas on both sides of the vertical rudder surface directly above the cruciform rudder surface are always grouped as one group, and the remaining two antennas are grouped as another group. Before the switch, when one of the groups is operating, the other group is not operating.

[0050] In this embodiment, the group of antennas on both sides of the vertical rudder surface directly above is in the zenith direction, which is more conducive to satellite searching and positioning.

[0051] In the above embodiment, in order to ensure autonomous switching of the distributed antennas without inertial information assistance, so as to ensure continuous reception of satellite signals and output the positioning result, step 3 specifically includes:

[0052] 3.1. Judge the number of frame-synchronized satellites and the time measured by the timers in the A channel and the B channel corresponding to the two antennas of the operating antenna group respectively, where:

[0053] If the number of frame-synchronized satellites in both the A channel and the B channel exceeds the set threshold N, then go to step 3.2;

[0054] If the number of frame - synchronized satellites in both Channel A and Channel B is less than the set threshold N and the elapsed time of the corresponding timers exceeds the set time T, then go to Step 3.3;

[0055] If the number of frame - synchronized satellites in Channel A exceeds the set threshold N, the number of frame - synchronized satellites in Channel B is less than the set threshold N, and the elapsed time of the timer in Channel B exceeds the set time T, then go to Step 3.4;

[0056] If the number of frame - synchronized satellites in Channel B exceeds the set threshold N, the number of frame - synchronized satellites in Channel A is less than the set threshold N, and the elapsed time of the timer in Channel A exceeds the set time T, then go to Step 3.5;

[0057] 3.2. Then neither Channel A nor Channel B performs antenna switching. Clear the timers of Channel A and Channel B and go back to Step 3.1 to continue the judgment;

[0058] 3.3. Then both Channel A and Channel B need to perform antenna switching. Clear the timers of Channel A and Channel B and go back to Step 3.1 to continue the judgment;

[0059] 3.4. Then Channel A does not perform antenna switching and Channel B needs to perform antenna switching. Clear the timers of Channel A and Channel B and go back to Step 3.1 to continue the judgment;

[0060] 3.5. Then Channel B does not perform antenna switching and Channel A needs to perform antenna switching. Clear the timers of Channel A and Channel B and go back to Step 3.1 to continue the judgment.

[0061] For example, as Figure 1 shown, use Antenna 1 and Antenna 2 as the working antennas to search for satellites, and check the number of frame - synchronized satellites in the corresponding tracking channels of Antenna 1 and Antenna 2. The timer timeout is the set time T;

[0062] When the number of frame - synchronized satellites in the corresponding tracking channels of Antenna 1 and Antenna 2 is less than the set threshold N and the corresponding timer timeouts are both the set time T, then switch to use Antenna 3 and Antenna 4 as the working antennas to search for satellites, and repeat the next timeout judgment;

[0063] When the number of frame - synchronized satellites in the tracking channel corresponding to Antenna 1 is less than the set threshold N and the corresponding timer times out at the set time T, while the number of frame - synchronized satellites in the tracking channel corresponding to Antenna 2 exceeds the set threshold N, then Antenna 2 remains unchanged, switch Antenna 1 to Antenna 3 to search for satellites, and repeat the next timeout judgment;

[0064] When the number of frame-synchronized satellites in the tracking channel corresponding to antenna 1 exceeds the set threshold N, while the number of frame-synchronized satellites in the tracking channel corresponding to antenna 2 is less than the set threshold N and the corresponding timer times out to the set time T, antenna 1 remains stationary, antenna 2 is switched to antenna 4 for satellite searching, and the next timeout judgment is repeated;

[0065] When the number of frame-synchronized satellites in the tracking channels corresponding to both antennas 1 and 2 exceeds the set threshold N, antennas 1 and 2 remain stationary, and the next timeout judgment is repeated.

[0066] It can be seen that the method of this embodiment uses its own information for autonomous antenna switching, solves the problem of how to switch distributed antennas when inertial information is unavailable during the rolling process of the missile, and can ensure continuous and normal reception of satellite signals by the satellite antenna.

[0067] In the above embodiment, in order to better ensure continuous reception of satellite signals and output positioning results, the set threshold N is 4 satellites.

[0068] In the above embodiment, in order to better ensure continuous reception of satellite signals and output positioning results, the set time T is the time between two frame synchronizations plus a set time margin.

[0069] Preferably, the set time margin is 3s, and the set time T is 15s.

[0070] In addition, in some embodiments of the present invention, as Figure 1 shown, step 3.1 may further include:

[0071] If the number of frame-synchronized satellites in both channel A and channel B is less than the set threshold N and the elapsed time of the corresponding timers in both channels is less than the set time T, go to step 3.6;

[0072] If the number of frame-synchronized satellites in channel A exceeds the set threshold N, the number of frame-synchronized satellites in channel B is less than the set threshold N, and the elapsed time of the timer in channel B is less than the set time T, go to step 3.7;

[0073] If the number of frame-synchronized satellites in channel B exceeds the set threshold N, the number of frame-synchronized satellites in channel A is less than the set threshold N, and the elapsed time of the timer in channel A is less than the set time T, go to step 3.8;

[0074] Step three further includes:

[0075] 3.6. Then, neither channel A nor channel B performs antenna switching, and the timers in both channel A and channel B are incremented, and go to step 3.1 to continue the judgment;

[0076] 3.7. Neither the A channel nor the B channel performs antenna switching, and the timer of the A channel is cleared, the timer of the B channel is incremented, and the process goes back to step 3.1 for continuous judgment;

[0077] 3.8. Neither the A channel nor the B channel performs antenna switching, and the timer of the B channel is cleared, the timer of the A channel is incremented, and the process goes back to step 3.1 for continuous judgment.

[0078] It can be seen that by using the distributed antenna autonomous switching method provided in the embodiments of the present invention, it can be ensured that satellite signals are still available when inertial information is unavailable during the rolling process of the missile, and the position and speed information of the missile can be continuously provided for the missile guidance and control system.

[0079] The features described and / or illustrated for one embodiment above can be used in the same or similar manner in one or more other embodiments, and / or combined with the features in other embodiments or used to replace the features in other embodiments.

[0080] It should be emphasized that the term "including / comprising" when used in this specification refers to the presence of features, whole things, steps or components, but does not exclude the presence or addition of one or more other features, whole things, steps, components or combinations thereof.

[0081] The above method of the present invention can be implemented by hardware or by a combination of hardware and software. The present invention relates to such a computer-readable program that when executed by a logic component, can enable the logic component to implement the device or component described above, or enable the logic component to implement the various methods or steps described above. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0082] Many features and advantages of these embodiments are clear from this detailed description, so the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. In addition, since many modifications and changes are readily conceivable by those skilled in the art, the embodiments of the present invention are not to be limited to the exact structures and operations illustrated and described, but may cover all suitable modifications and equivalents that fall within their scope.

[0083] The parts not described in detail in the present invention are well-known technologies to those skilled in the art.

Claims

1. A distributed antenna autonomous switching method, characterized in that, the method includes: Step 1: Four satellite receiving antennas are sequentially and evenly arranged on the projectile along the circumferential direction of the projectile; Step 2: Take any two adjacent antennas as a group, and the remaining two as another group. One group serves as the working antenna group for satellite searching, and the other group serves as the backup antenna group and is in a non-working state. Among them, the two antennas of the working antenna group respectively correspond to tracking channels A and B, and the two antennas of the backup antenna group respectively correspond to the tracking channels A and B. The two antennas with the same corresponding tracking channel are arranged oppositely; Step 3: Design a switching strategy between the two antennas of the working antenna group and the two antennas of the backup antenna group according to the number of frame-synchronized satellites in the tracking channels A and B corresponding to the two antennas of the working antenna group and the time elapsed by the timers corresponding to the tracking channels A and B. Among them, when switching is required, the two antennas with the same tracking channel are switched; The specific content of Step 3 includes: 3.

1. Judge the number of frame-synchronized satellites and the time elapsed by the timers in channels A and B corresponding to the two antennas of the working antenna group respectively, where: If the number of frame-synchronized satellites in both channels A and B exceeds the set threshold N, go to Step 3.2; If the number of frame-synchronized satellites in both channels A and B is less than the set threshold N and the time elapsed by the corresponding timers both exceeds the set time T, go to Step 3.3; If the number of frame-synchronized satellites in channel A exceeds the set threshold N and the number of frame-synchronized satellites in channel B is less than the set threshold N and the time elapsed by the timer in channel B exceeds the set time T, go to Step 3.4; If the number of frame-synchronized satellites in channel B exceeds the set threshold N and the number of frame-synchronized satellites in channel A is less than the set threshold N and the time elapsed by the timer in channel A exceeds the set time T, go to Step 3.5; 3.

2. Then no antenna switching is performed for channels A and B, the timers for channels A and B are cleared, and go to Step 3.1 to continue the judgment; 3.

3. Then antenna switching is to be performed for both channels A and B, the timers for channels A and B are cleared, and go to Step 3.1 to continue the judgment; 3.

4. Then no antenna switching is performed for channel A and antenna switching is required for channel B, the timers for channels A and B are cleared, and go to Step 3.1 to continue the judgment; 3.

5. Then no antenna switching is performed for channel B and antenna switching is required for channel A, the timers for channels A and B are cleared, and go to Step 3.1 to continue the judgment.

2. A distributed antenna autonomous switching method according to claim 1, characterized in that, the projectile includes a positive cruciform rudder surface, and among them, the four satellite receiving antennas are evenly distributed in the four quadrants formed by the positive cruciform rudder surface.

3. A distributed antenna autonomous switching method according to claim 1, characterized in that, Among the four satellite receiving antennas, the two adjacent antennas on both sides of the vertical rudder surface directly above the positive cruciform rudder surface are always a group, and the remaining two antennas are another group. Before switching, when one group is working, the other group is not working.

4. A distributed antenna autonomous switching method according to claim 1, characterized in that, the set threshold N is 4 satellites.

5. A distributed antenna autonomous switching method according to claim 1 or 4, characterized in that, the set time T is the time of two frame synchronizations plus a set time margin.

6. A distributed antenna autonomous switching method according to claim 5, characterized in that, the set time margin is 3 s, and the set time T is 15 s.

7. A distributed antenna autonomous switching method according to claim 6, characterized in that, step 3.1 further includes: if the number of frame-synchronized satellites in both channel A and channel B is less than the set threshold N and the elapsed time of the corresponding timers is less than the set time T, then go to step 3.6; if the number of frame-synchronized satellites in channel A exceeds the set threshold N and the number of frame-synchronized satellites in channel B is less than the set threshold N and the elapsed time of the timer in channel B is less than the set time T, then go to step 3.7; if the number of frame-synchronized satellites in channel B exceeds the set threshold N and the number of frame-synchronized satellites in channel A is less than the set threshold N and the elapsed time of the timer in channel A is less than the set time T, then go to step 3.8; step three further includes: 3.

6. Then neither channel A nor channel B performs antenna switching, and the timers of both channel A and channel B are incremented, and go to step 3.1 to continue the judgment; 3.

7. Then neither channel A nor channel B performs antenna switching, the timer of channel A is cleared, the timer of channel B is incremented, and go to step 3.1 to continue the judgment; 3.

8. Then neither channel A nor channel B performs antenna switching, the timer of channel B is cleared, the timer of channel A is incremented, and go to step 3.1 to continue the judgment.

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